Enroll into the Power Prep Week Grade 9🔥 : Master MOST REPEATED questions from India's TOP SCHOOLS' question papers with our YT Teachers LIVE🔥 Click on the Link Below 😍 shop.byjus.com/products/power-prep-week-exam-crash-course-grade-9?
Very helpful session mam!! I understood these formulas via visualisation 😃 🔴 HOMEWORK- Question- 1:21:19 Answer- Radius of earth=6400km Total surface area of earth(sphere)= 4πr² Or, 4*22/7*6400²= 514,925,714 km² According to the question, 70% of Total surface area of earth= area covered by ocean Or, 70/100*514,925,714 = 360,448,000 km² Hence, area of earth covered by water is 360,448,000km²
First Happy Diwali Mam and All our Respected Teachers. 💫🌟🌟💫🎇🎇 Thank you 🙏🙏🙏🙏 so much mam For Making our Concepts easy and Crystal Clear. I really enjoyed session. 😍 Homework: - Q1. 43:10 At a time only half surface area of the Earth gets sunlight that is CSA of Earth's Hemisphere , Formula of CSA of Hemisphere= 2πr² ,in case of Earth Radius= 6400km so, 2π(6400)²= 2×22/7× 40,960,000 , on solving we get 257,462,857 Km² , hence, Ans:-257,462,857 Km² Q2. 1:21:45 70% of Earth's surface area is covered by waters so, 70% of TSA of Earth Since Assuming Earth is a Sphere TSA of Earth = 4πr² =4×22/7×(6400)² On solving we get TSA = 514,925,714 Km² 70% of TSA of Earth = 70/100×514,925,714 = 360,448,000 Km² Answers Hence, 360,448,000 Km² of water exists on the Earth's surface. Thank you🙏🙏❤🙏🙏 so much mam Once again For Everything.😃
Hello kids! Check your understanding of the Surface Areas and Volumes chapter by answering these 5 quick questions in the form: forms.gle/UAuya2hyBmwbDyn86
ROSES ARE RED VIOLETS ARE BLUE ARSH MAM IS THE BEST TEACHER AND THAT'S TRUE....... Mam is se achchi explanation maine apni zindagi bhar me kahi nahi dekha.... thank you so much ma'am.....
Happy Diwali 🎇🪔 Ma'am. Here are some answers to your questions (HOMEWORK) 📚 HOME WORK 1:- Since Earth 🌎 is a sphere. Half of the earth surface gets Sun light Therefore, C.S.A. of hemisphere of Earth gets direct sunlight. Radius of the earth, i.e _ (r = 6400Km) C.S.A. of hemisphere = 2πr² 2 x 22/7 x 6400 x 6400 = = 25,74,62,857.14 Km² [approximately] 📚 HOMEWORK 2:- Radius of the earth , i.e (r = 6400Km) TSA of the earth = 4πr² = 4x22/7x 6400×6400 =514925714.3 Km² 70% of TSA of earth's surface that is covered with water = 70/100 × 514925714.3 = 36,04,48,000 Km². I hope you like it. It was a wonderful session 😁
Homework 📚 Question: 1. Curved S. Area of Hemisphere = 2πr²= 2× 22/7× 6400×6400= 257,462,857 approx. 2. Radius of earth = 6400 km So, Total S. Area of earth= 514,925,714 square km approx. Area of earth covered by oceans= 70/100× 514,925,714= 360,447,999 approx.
31:46 how are we supposed to know the sizes of the 4 circles? And Wouldn't it be senseless if we divide the thread into 4 parts and wrap it around 4 circles??
Happy Diwali ma'am ❗ 🎇🎇🎆 Thank you ma'am for this amazing session 🎊🎉 Because of visualisation, all the concept set in my long term memory ❕.. 🔴 HOME WORK 1 : Half of the earth 🌎 surface get Sun light Therefore, C.S.A. of hemisphere gets direct sunlight. Radius of the earth, r = 6400 Km C.S.A. of hemisphere = 2πr² = 2 x 22/7 x 6400 x 6400 = 25,74,62,857.14 Km² (approx..) 🔴 Homework 2 : Radius of the earth 🌍,r = 6400Km TSA of the earth= 4πr² = 4×22/7× 6400×6400 =514925714.3 Km² 70% of TSA of earth's 🌍 surface that is covered with water = 70/100 × 514925714.3 = 36,04,48,000 Km²
Thank you for the session mam 😀😀😀 On the occasion of Diwali it is the great bliss that we become pro 👍in this chapter 🌹🌹 Answer of homework questions -1 Half of the earth surface is Get sunlight So, the CSA of hemisphere gets Direct sunlight of the earth radius of the earth = 6400km CSA of hemisphere gets direct sunlight Radius of the earth = 6400km CSA of hemisphere = 2πr2 = 2 * 22/7 * 6400*6400 = 25,74,62,857.14k Answer of homework questions -2 Radius of the earth = 6400km TSA of earth = 4πr2 = 4 * 22/7 * 6400 * 6400 = 51,49,25,714.3 km2 70% of TSA of earth is covered with water So, 70/ 100 * 51,49,25,714.3 = 36,04,48,000km2 Waiting for another session of this chapter 😀😀😀😀 And happy Diwali to byjus 💜💜❤❤🎉🎉🎉🎊🎊🎊
🎉Happy Diwali🎉 Homework Question-> 43:15 Answer is 6262856 km^2 1:21:18 Answer is 8768000 km^2 -> The session was amazing but I fell that this chapter needs alot of practice because there are many chances of Calculation errors... Thank You Mam for this class and Happy Diwali...
Mam for the surface of earth can we take the CSA of a hemisphere because only half of the earth is getting the sunlight which is in hemispherical shape. Or should we take the TSA of the circle?
🔴 HOMEWORK- Question- 1:21:19 Answer- Radius of earth=6400km Total surface area of earth(sphere)= 4πr² Or, 4*22/7*6400²= 514,925,714 km² According to the question, 70% of Total surface area of earth= area covered by ocean Or, 70/100*514,925,714 = 360,448,000 km² Hence, area of earth covered by water is 360,448,000km² 🌍
🔴Homework Answer : Radius of earth = 6400km TSA of earth = 4πr² (sphere) 4*22/7*6400² = 514,925714 According to the question 70%OF TSA of earth = area covered by ocean 70/100*514925714 = 360,448,000 kms
Curved surface area of the triangle = area of all triangles + circumstance of the triangle . CSA = 1/2 x slant height (l) x 2 x π x radius = πrl CSA of a cone = πrl TSA = πr(l+r)
Hi mam, Mam one request pls make a separate video for the calculation in easy methods. Pls mam🙏 And Thank u so much for this clear explanation It went very smooth for exam .
Very helpful and interesting session mam . Thank you mam Happy DIWALI Homework 🔴 Given- radius of earth is = 6400 km Total surface area of sphere is = 4πr2 4 * 22/7*6400 square = 514,925,714 According to Q. 70% of earth surface is covered by water : 70/100 * 514,925,714 = 360,448,000 km 2 Mam I use 2 as square
Learn with Mansi channel can explain full ch introduction traingle, rectangle,cube, cuboid, hemisphere,cube, hollow circuit in just 25 minutes I really appreciate Mansi mam she also teach sci to 8,9,10 cl
Homework question answer: **If the earth's radius is 6400 km Then TSA of the earth - 4πr² 4πr² = 4*3.14*6400*6400 = 514457600x70/100 =360,120,320 360120320 km of earth's surface is wate********r
Similar questions will come we can’t expect what type of questions we will get . But to revise those questions will help . Just be through with the topics and read questions and understand and you can solve any type of question .
Enroll into the Power Prep Week Grade 9🔥 :
Master MOST REPEATED questions from India's TOP SCHOOLS' question papers with our YT Teachers LIVE🔥
Click on the Link Below 😍
shop.byjus.com/products/power-prep-week-exam-crash-course-grade-9?
Very helpful session mam!! I understood these formulas via visualisation 😃
🔴 HOMEWORK-
Question- 1:21:19
Answer- Radius of earth=6400km
Total surface area of earth(sphere)= 4πr²
Or, 4*22/7*6400²= 514,925,714 km²
According to the question,
70% of Total surface area of earth= area covered by ocean
Or, 70/100*514,925,714 = 360,448,000 km²
Hence, area of earth covered by water is 360,448,000km²
@@darshan09_25 HEY DARSHAN...
SORRY, BUT HEMISPHERE IS NOT MENTIONED IN THIS QUESTION
Who comes here right before a day of exam/test😂 BTW your explanation is ✨✨✨understandable mam soo good ✨✨✨
First Happy Diwali Mam and All our Respected Teachers. 💫🌟🌟💫🎇🎇
Thank you 🙏🙏🙏🙏 so much mam For Making our Concepts easy and Crystal Clear. I really enjoyed session. 😍
Homework: -
Q1. 43:10
At a time only half surface area of the Earth gets sunlight that is CSA of Earth's Hemisphere ,
Formula of CSA of Hemisphere= 2πr² ,in case of Earth Radius= 6400km so,
2π(6400)²= 2×22/7× 40,960,000 , on solving we get 257,462,857 Km² ,
hence,
Ans:-257,462,857 Km²
Q2. 1:21:45
70% of Earth's surface area is covered by waters so,
70% of TSA of Earth
Since Assuming Earth is a Sphere
TSA of Earth = 4πr²
=4×22/7×(6400)²
On solving we get TSA = 514,925,714 Km²
70% of TSA of Earth = 70/100×514,925,714 = 360,448,000 Km² Answers
Hence, 360,448,000 Km² of water exists on the Earth's surface.
Thank you🙏🙏❤🙏🙏 so much mam Once again For Everything.😃
mam I want rs agarwal questions for all chapters this is my humble request
Just search already there.
Woah they granted your wish
Hello kids! Check your understanding of the Surface Areas and Volumes chapter by answering these 5 quick questions in the form: forms.gle/UAuya2hyBmwbDyn86
ROSES ARE RED
VIOLETS ARE BLUE
ARSH MAM IS THE BEST TEACHER
AND THAT'S TRUE.......
Mam is se achchi explanation maine apni zindagi bhar me kahi nahi dekha....
thank you so much ma'am.....
Happy Diwali 🎇🪔 Ma'am. Here are some answers to your questions (HOMEWORK)
📚 HOME WORK 1:-
Since Earth 🌎 is a sphere. Half of the earth surface gets Sun light Therefore, C.S.A. of hemisphere of Earth gets direct sunlight.
Radius of the earth, i.e _ (r = 6400Km)
C.S.A. of hemisphere = 2πr²
2 x 22/7 x 6400 x 6400
= = 25,74,62,857.14 Km² [approximately]
📚 HOMEWORK 2:-
Radius of the earth , i.e (r = 6400Km)
TSA of the earth = 4πr²
= 4x22/7x 6400×6400
=514925714.3 Km²
70% of TSA of earth's surface that is covered with water = 70/100 × 514925714.3
= 36,04,48,000 Km².
I hope you like it. It was a wonderful session 😁
Homework 📚 Question:
1. Curved S. Area of Hemisphere = 2πr²= 2× 22/7× 6400×6400= 257,462,857 approx.
2. Radius of earth = 6400 km
So, Total S. Area of earth= 514,925,714 square km approx.
Area of earth covered by oceans= 70/100× 514,925,714= 360,447,999 approx.
and ex it's 36044800
Exactly its 360448000 km²
No offence but who else thinks that arsh ma'am is better than kushbu maam
Who ever thinks the same thing like this video
31:46 how are we supposed to know the sizes of the 4 circles? And Wouldn't it be senseless if we divide the thread into 4 parts and wrap it around 4 circles??
@@Armisy diameter of शेयर should be equal the diameter of 4 circles in this case hope it helps 🥰
Happy Diwali ma'am ❗ 🎇🎇🎆
Thank you ma'am for this amazing session 🎊🎉
Because of visualisation, all the concept set in my long term memory ❕..
🔴 HOME WORK 1 :
Half of the earth 🌎 surface get Sun light
Therefore, C.S.A. of hemisphere gets direct sunlight.
Radius of the earth, r = 6400 Km
C.S.A. of hemisphere = 2πr²
= 2 x 22/7 x 6400 x 6400
= 25,74,62,857.14 Km² (approx..)
🔴 Homework 2 :
Radius of the earth 🌍,r = 6400Km
TSA of the earth= 4πr²
= 4×22/7× 6400×6400
=514925714.3 Km²
70% of TSA of earth's 🌍 surface that is covered with water = 70/100 × 514925714.3
= 36,04,48,000 Km²
Correct 💯
Are you a teacher or a gem? your teaching is very gorgeous. having a sweet voice and attractive smile all the time...
Thank you for the session mam 😀😀😀
On the occasion of Diwali it is the great bliss that we become pro 👍in this chapter 🌹🌹
Answer of homework questions -1
Half of the earth surface is Get sunlight
So, the CSA of hemisphere gets Direct sunlight of the earth
radius of the earth = 6400km
CSA of hemisphere gets direct sunlight
Radius of the earth = 6400km
CSA of hemisphere = 2πr2
= 2 * 22/7 * 6400*6400
= 25,74,62,857.14k
Answer of homework questions -2
Radius of the earth = 6400km
TSA of earth = 4πr2
= 4 * 22/7 * 6400 * 6400
= 51,49,25,714.3 km2
70% of TSA of earth is covered with water
So, 70/ 100 * 51,49,25,714.3
= 36,04,48,000km2
Waiting for another session of this chapter 😀😀😀😀
And happy Diwali to byjus 💜💜❤❤🎉🎉🎉🎊🎊🎊
3:38 start from here
Thanks
Thankyou yaar
🎉Happy Diwali🎉
Homework Question->
43:15 Answer is 6262856 km^2
1:21:18 Answer is 8768000 km^2
-> The session was amazing but I fell that this chapter needs alot of practice because there are many chances of Calculation errors... Thank You Mam for this class and Happy Diwali...
Mam for the surface of earth can we take the CSA of a hemisphere because only half of the earth is getting the sunlight which is in hemispherical shape. Or should we take the TSA of the circle?
MAM PLEASE MAKE VIDEO ON IMPORTANT QUESTION OF THIS CHAPTER BEFORE 20 NOVEMBER AS MY EXAMS WILL START AND THIS CHAPTER IS COMING!!
Sameeee
Mam You are looking very beautiful
🔴 HOMEWORK-
Question- 1:21:19
Answer- Radius of earth=6400km
Total surface area of earth(sphere)= 4πr²
Or, 4*22/7*6400²= 514,925,714 km²
According to the question,
70% of Total surface area of earth= area covered by ocean
Or, 70/100*514,925,714 = 360,448,000 km²
Hence, area of earth covered by water is 360,448,000km²
🌍
🔴Homework Answer : Radius of earth = 6400km
TSA of earth = 4πr² (sphere)
4*22/7*6400² = 514,925714
According to the question
70%OF TSA of earth = area covered by ocean
70/100*514925714
= 360,448,000 kms
Hat's off to your teaching mam 😌😲😲😲😮 i saw many videos on yt but no one explain this chapter as you done 🎉😢
Mam why you took the slant height as the height of the triangle?
mam what should be the radius of the circle in the case of finding csa of sphere by thread
Mam now i will going to join 10th please suggest which book will better for practice
Legends watching one day before exam☠️
Curved surface area ke formula se to ho nahi raha mam ab kya karu mam please help me man kal exam hai
Mam please bring rs agarwal questions
257462. Km^2 are the earth surface get sunlight directly
Curved surface area of the triangle = area of all triangles + circumstance of the triangle .
CSA = 1/2 x slant height (l) x 2 x π x radius = πrl
CSA of a cone = πrl
TSA = πr(l+r)
Area of triangle = 1/2 x b x h
Area of the rectangle = length x breadth
Area of the circle =πr^2
CSA of Sphere = 1/2 (4 π r^2)
SA of sphere = 4 π r^2
CSA of Hemisphere = 2 π r^2
TSA of hemisphere = CSA + circular base
TSA of hemisphere = 2πr^2+ πr^2 = 3πr^2
mam you teaching way is very nice
Thank you so much mam ☺️ your videos very helpful mam
very helpful thank you so much :)
44:33 257,462,857.14285 km square is the curved surface area of the hemisphere of the earth
Ma'am excellent explain I understand whole chapter thank u 😚
Mam Amount of rubber required to make basketballs
Aapne 21 upon 2 q kiya???????
Vo diameter hai aur uska redius half hota hai
Different mam because in soild how much capacity of water can we pour in it is capacity and volume is that how much water is present in it
water surface = 70%
4*pi*r square
4*22/7*6400*6400 = 514925714
so final area is 514925714 * 70/100 = 360448000 km2
Hi mam,
Mam one request pls make a separate video for the calculation in easy methods.
Pls mam🙏
And
Thank u so much for this clear explanation
It went very smooth for exam .
Yes mam 😊plz
Mam I have a doubt in the question of earth facts please help me 😊😊😊
Mam where is the radius of sphere
Salute to great teacher
Homework Question->
🔴Answer is 6262856 km^2
🔴Answer is 8768000 km^2
Mam ncert question please as exam is on 2 december
1:16:28 cc
Thknu mam 😊
Yes maam
Best teaching method I found on TH-cam
Thanks you mam to help in surface areas and volume
thanks mam 3:02
Mam plz ncert
Very helpful and interesting session mam . Thank you mam
Happy DIWALI
Homework 🔴
Given- radius of earth is = 6400 km
Total surface area of sphere is = 4πr2
4 * 22/7*6400 square = 514,925,714
According to Q.
70% of earth surface is covered by water
: 70/100 * 514,925,714 = 360,448,000 km 2
Mam I use 2 as square
Thank you so much mam i am scoring very good marks after studying from you mam ❤
Thank you mam for your teaching us
Learn with Mansi channel can explain full ch introduction traingle, rectangle,cube, cuboid, hemisphere,cube, hollow circuit in just 25 minutes I really appreciate Mansi mam she also teach sci to 8,9,10 cl
Thank you mam your math teaching i like and every thing is solve math
43:15 180224000km² gets direct sunlight
Galat h
Thank you mam your class will help me to get first rank in exam
THANK YOU MAM FOR THIS AMAZING SESSION 😀
Mam Crystal clear❤🎉
Thankyou mam u made it tooo easy...
Mam can u use PYQ(PREVIOUS YEAR QUESTION PAPER)
Guruji ki jai ho
Maam pls exempler and rd 🙏🙏🙏🙏🙏
Ma'am u look quite similar to Mohena Kumari.
Area of the Earth receiving sunlight = 257462851.43 square km.
What is your name ma'am
Arshdeep kaur
mam the answer of this question will be 245760000 km square
Mam please study in Rd Sharma class 9
Mam you are great ❤❤
Amazing session mam
Happy new year 🥳🥳🥳🥳
Mam aap badhiya dikh rahi ho
Very understanding but mam it is not grey its purple in cone mam😢😢
my name is Hrithik and your is Arsh hrithik ❤Arsh
thx mam nice teaching.
Superb mam 🎉🎉🥰🥰 aap bohot jyada easy tarike se samjha rahe ho jo hume jaldi se samajh aa raha hai 😊😊 thank you so much mam🥰🥰😍😍👌🤩
Ball is sphere right
Thank you soo much madam
HOTS
1.098 square kilometres
is the answer of homework questions
Mam you are a beautyfull 😇😁
Homework question answer:
**If the earth's radius is 6400 km
Then TSA of the earth - 4πr²
4πr² = 4*3.14*6400*6400 = 514457600x70/100 =360,120,320
360120320 km of earth's surface is wate********r
crystal clear
when is next live class class 9 maths mam!?
Super 🎉🎉🎉🎉rock it
Mam volume is 633.864
Thanks u so much mam
Mam cube Or cuboid sullabus menahi hai
Why you taking TSA
TSA
Hi
Mam answer is 132
Yr exam sa phala bhi a Jaya karo 🤣😂
Mam cube , cuboid and hemisphere pe questions aa sakte hai??
You should check in the channel they are there
But will the questions come in exams from the topic..
Similar questions will come we can’t expect what type of questions we will get . But to revise those questions will help . Just be through with the topics and read questions and understand and you can solve any type of question .
4000 rs ka animation pack hai 1:00:33
132 cm 2
Hemisphere and 70400
😊
Mam aap bahut cute ho 😊❤
Mam, you are so cute ❤❤❤❤😊😊😊😊😊😊😊❤😊😊❤😊😊❤😊😊❤😊😊😊❤😊😊❤😊😊😊❤😊😊😊❤😊