Class 7 Maths Chapter 6 Exercise 6.3 | The Triangle & Its Properties | NCERT Class 7 Maths
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- เผยแพร่เมื่อ 11 มิ.ย. 2024
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✅ In this video,
✔️ Class: 7th
✔️ Subject: Maths
✔️ Chapter: The Triangles And its Properties
✔️ Topic Name: NCERT Solutions Chapter 6 Exercise 6.3
=======================================================
00:00 Maths Introduction: The Triangles And its Properties
00:28 Question 1: Exercise 6.3: Chapter 6
11:17 Question 2: Exercise 6.3: Chapter 6
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Sir did not anderstand exercise 6.1
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x+x+x-180
Angle sum property
3x-180
x-180 by3
x-60
Very good
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Previous Video : NCERT Solutions Chapter 6 Exercise 6.2 - th-cam.com/video/_bdov7HDXD4/w-d-xo.html
Next Video : NCERT Solutions Chapter 6 Exercise 6.4 - th-cam.com/video/-46FVK-YHRo/w-d-xo.html
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14:24 he:we can't use lines and angles
Also he: proceeds to solve all next questions using it
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Sir the answer of exercise 6.3 1st question 5 answer is hence , it is an equilateral triangle so to find the value of all sides first we will do x+x+x=180 therefore it will be 3x =180 now,x= 180÷3=60 so x is equal to 60 ans
That is correct! An equilateral triangle has all three sides equal, so you can find the value of each side by taking the total sum of all the angles and dividing by 3.
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Question number 2 ke 4 mein vertically opposite angle bhi to ho sakta tha 60degree ka
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Sir agar linear pair ke badle agar vertical opposite apply karke direct nikal nahi sakte
Sir agar que. 2 mai Jo 2nd wala hai usme 80° ka vertical opposite angle Bhi Ho skta hai na y=80°
Ha Bhai agar tum angle sum property lagaoge lines and angles wali toh fir y = 80° kehsakte hai and then 180 - 80°+50° toh hoga 180°-120° = 60°
Therefor you can say that x = 60°
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@@MagnetBrainsEducation 60. Angle
60 degree
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But sir in ex 6.3 q2 ii) part to find 'y' we can use vertically opposite angles property
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Everyone and magnet brains!!!!!! I have a correction in question 2 ii x=50 and y=80 and also you have used the linear angle property which is not from this chapter and of you try to solve it using exterior angle property to find x then interior angle property to find y it's x=50 and y=80 I have checked in the ncert book too it's same so please correct this and don't confuse us
Hello Bhai , in math ch 6 triangle and it's properties for class 7 exercise 6.3:. 2. I) we can do also like this see and say it's correct or not please:
Y+50°=120°
Y+50°=120°
Y=120°-50°
Y=70°
And
x+y+50°
x+70°+50°
x+120°=180°
x=180°-120°
x=60°
Is it 👍?
Question no 1 answers
Answer no i) 70°
ii)60°
iii)40
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The sum of angle of triangles is 180 degrees 110 degree+ 30 degrees +x degrees = 180 degrees 140+x=180 x = 180-140 =40 x=40 degree
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Sir question 2 second part 80=y (vertically opposite angle)
Hii
We are studying Triangle and it's properties not lines and angles, so we cannot use that property
We can use that also but teacher can cut marks for that
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Sir can we also do sum of interior opposite angle of exterior is always equal to exterior angle
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Answering at 07:46
This is an equilateral triangle, hence its all sides are equal.
And therefore
x+x+x=180°
3x=180°
x=180°/3
x=60°
And the answer is 60° all x are equal to 60 °
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