I was taught this same method over 21 years ago, and all efforts to recall failed until I watched your video. Thank you very much for this very straight to the point video.
For those wondering why it didn't work, it's because the construction is approximate: if |AB|=1, the radius |A5| = sqrt((4+sqrt(3))/8) ≈ 0.8465, instead of sqrt((5+sqrt(5))/10) ≈ 0.8507. Still, it means 0.5% precision, so it should definitely look OK, taking line thickness into account (as the video demonstrates).
i do a lot of crafting and hate having to pay so much for so many templates. Your tutorials have saved me so much. Thank you so much for making this Grandmas budget. I have also referred your videos to other senior crafters. The guy who says it doesn't work is full of fecal matter.
Thx a lot I was struggling a lot in this subject and i am writing an exam in about 1 and a half hours. But i am now positive i am going to ace it all thx to you 😁
A few years ago I searched for a method for construction of the regular pentagon which contained proof of its own veracity... I could not find one, so I came up with a new method which is impossible to forget. It starts with the Unit Circle, then finding the mid-point of the radius on the X-Axis, then add 1/2 of Root 5 to 1/2 and you get the Golden ratio on the X-Axis. Use your compass centered on the golden ratio point, and draw a circle with radius of golden ratio... Thus there will be 2 golden triangles drawn, one above the X-Axis, and one below it... The 3 points going through the Unit Circle are by definition 3 of the 5 points you need to make a regular pentagon, so just draw in the final two points. I should record a video of it, and post it on TH-cam. The base angles in an isosceles golden triangle are 72 degrees, which is 1/5th of 360 degrees...! 1/2 of root 5 is obtained by making the line-segment between points (1/2, 0) and (0, 1), then just use Pythagorean Theorem to confirm.
Ty very much i was having a hard time on my assignment draw a perfect same angle and side pentagon u really helped me❤❤❤i sub and like im really thankful i just need to watch a hexagon one and im good tysm again😊❤❤❤❤
This looks very convincing, yet it turns out to be an approximation. If the base length AB is 1, then the height of point 5, h5 = (1+sqrt(3))/4; The angle we want is a= 2pi / 5. But in the drawing you think you should get tan(a/2) =2/(1+sqrt(3)); So a = 2 arctan[2/(1+sqrt(3))]; which gives a= 1.2638 However, 2pi/5 is 1.2566. It's only about 0.57 percent off. I got a little suspicious because this seemed such an easy construction. Too easy to be accurate 🙂 But pretty nice anyways.
Well i guess i need to find a video explain the middle point method then come back when you placed the compass on 6 where is the compass set just random? Depend on the compass distance spot 5 could be out in space, ive Watched 3 different channels on how to draw a pentagon and every video theres a question i do appreciate you talking the other videos play music donr talk and just start slapping lines down and readjusting the compass and the title says SUPER EASY, probably is once you learn how
At this point you will have to wait, as I am working on other videos at the moment. What I can recommend is to find the point used for a hexagon and just double the distance. That will give you the point for a dodecagon.
I was taught this same method over 21 years ago, and all efforts to recall failed until I watched your video. Thank you very much for this very straight to the point video.
This is the first time I've drawn a perfect pentagon. This method is spot on. Thank you ❤
nothing is perfect
no one is perfect
jk, just a joke, well done bro😁
This is not a perfect pentagon. perfect pentagon can not be constructed using compass-ruler
Any one in 2024
Yup
me
Yes
Me in may 2024!
I'm writing tomorrow 😭
I have been struggling to construct pentagon but now found it easy after watching this video❤
For those wondering why it didn't work, it's because the construction is approximate: if |AB|=1, the radius |A5| = sqrt((4+sqrt(3))/8) ≈ 0.8465, instead of sqrt((5+sqrt(5))/10) ≈ 0.8507. Still, it means 0.5% precision, so it should definitely look OK, taking line thickness into account (as the video demonstrates).
Bro wtf
Wow thats fantastic
So if we draw a big enough pentagon with a small enough nib would the defects show?
@@Someone-qd8up Yes, definitely - that's what the above numbers show.
Thanks for keeping me sane, I was following along in AutoCAD and the error definitely shows up 😅
i do a lot of crafting and hate having to pay so much for so many templates. Your tutorials have saved me so much. Thank you so much for making this Grandmas budget. I have also referred your videos to other senior crafters. The guy who says it doesn't work is full of fecal matter.
Thank you for your kind words. And I am glad I am able to help out. I will keep trying to post more helpful videos.
@@Wimmas pls write out the steps in constructing a pentagon using 3 circle method
Ami Jani Tumi Kichu jabina@@Wimmas
Bahut Vdhia Sanu Bahut Help Mili Te Assi Bahut Enjoy Kita So Much Love You Alp Class Very Nice Good Thing ❤
I was looking for this method for hours ... finally found it ...thank you for the detailed explanation 👍🤗
You're welcome, although I still recommend method 1 on this channel because of accuracy.
Good
Hey😂
Thank you so much for this video!! None of the others I tried were exact. Yours was PERFECT the FIRST TIME!!!
Glad I could help.
You the best wrote a EGD grade 10 test and you helpt me 🎉
Glad to help. Hope the test went well.
Your methods is very good, easy and accurate. Thank you so much
You're welcome.
Thx a lot
I was struggling a lot in this subject and i am writing an exam in about 1 and a half hours. But i am now positive i am going to ace it all thx to you 😁
You're welcome, and glad it helped.
@@Wimmas it did a lot thx and i got 100% on the exam thx to you 🙏
THANK YOU! This been causing me many sleepless nights xxxx
You have taught way more in one video that my art teacher in her whole career
bro math teacher not a art teacher bec its a PENTAGON
@@_GhostGamerYT_wtf?
I am sorry to hear that, and thanks btw.
Love from Bangladesh 🇧🇩🇧🇩🇧🇩
This video is really helpful...
Thank you very much
You're welcome
Ata ki regular pentagon??
Anyone in 2024
A few years ago I searched for a method for construction of the regular pentagon which contained proof of its own veracity... I could not find one, so I came up with a new method which is impossible to forget. It starts with the Unit Circle, then finding the mid-point of the radius on the X-Axis, then add 1/2 of Root 5 to 1/2 and you get the Golden ratio on the X-Axis. Use your compass centered on the golden ratio point, and draw a circle with radius of golden ratio... Thus there will be 2 golden triangles drawn, one above the X-Axis, and one below it... The 3 points going through the Unit Circle are by definition 3 of the 5 points you need to make a regular pentagon, so just draw in the final two points. I should record a video of it, and post it on TH-cam. The base angles in an isosceles golden triangle are 72 degrees, which is 1/5th of 360 degrees...! 1/2 of root 5 is obtained by making the line-segment between points (1/2, 0) and (0, 1), then just use Pythagorean Theorem to confirm.
Thanks to you i can pass my Basic Technology tests.
It really helped me in my school project ,thanks please keep it up by making more
You're the best...I thought I could never do TD but you made it easy👏👏
I Am Indian I Am Very Happy 😊 For Your Teaching Way
That's great to hear.
Thanks. Just the method I was looking for.
Good to know, hope it helped
I really understood, thank you so much 😊
great content.
you have a new subscriber.
i learnt something.
Thank you
Thank you its great short cut pentagon..
Thanks a lof for shareing your technic
You're welcome
Very helpful, thank you. The top of my pentagon did not meet the top of the circle, but all sides were equal.
Very helpful thanks the instructions were awesome 💯
Thanks
thanks for your tutorial sir.
You're welcome
Thank you very much, this helps me really well. Keep it uppp😊
Thank you for your kind words.
Thank you😊 very much I am understanding very well 😇and you doing good videos and all the best 👌
You're welcome, and thank you for your kind words.
Thank you so much, You are a lifesaver
Glad to help
It was helpful last year
Thank you this year
It was amazing ....I think this is the easiest way to draw a pentagon......👌👌
Thank you for teaching me how to draw a pentagon
Ty very much i was having a hard time on my assignment draw a perfect same angle and side pentagon u really helped me❤❤❤i sub and like im really thankful i just need to watch a hexagon one and im good tysm again😊❤❤❤❤
Finally done!!! Thank you..
You're welcome
Thank you sir it helped me alot
This is the best vid ive seen wow it was really helpful
Anyone having exam?
SHUT UPP
Yes
Literally me rn
Thanks your videos are very useful and your methods are simple
Very useful video thank you sir
You are really doing a good job
This was really helpful
Glad to help
Sir,
I tried thrice but there is a problem in the second last step while intersecting .
Then try method 1 on this channel. Its a bit more accurate if you struggle with the second last step
So you dont need the mid point lines below the A B line?
U Made this so simple thanks 👍
Liked the neat method, but it would have been nice to know the logic behind this method.
Very helpful 🙌🙌
Love from sindhudesh☺️💖🌹🥰♥️
Love from South Africa.
Thx a lot I was really helpful this for make a dodegahedron
Anyone revising a night before exam
Thanks I get more from this technical drawing
This looks very convincing, yet it turns out to be an approximation. If the base length AB is 1, then the height of point 5, h5 = (1+sqrt(3))/4;
The angle we want is a= 2pi / 5. But in the drawing you think you should get tan(a/2) =2/(1+sqrt(3)); So a = 2 arctan[2/(1+sqrt(3))]; which gives a= 1.2638
However, 2pi/5 is 1.2566. It's only about 0.57 percent off.
I got a little suspicious because this seemed such an easy construction. Too easy to be accurate 🙂 But pretty nice anyways.
This is very helpful thanks for I have passed my waec
Thank u so much
This is very useful to mee...
Thanks I was very worried about it
Is anyone watching this just because of exame 😂
Me here 😂😂😂
Thank you❤
I'm so good at this thank you 😮😮
Hi amazing work. Thanks a bunch for the vid😊
Thank you and i know how to do my math homework 😅
Nice videos
Thanks
very nice , thanks a lot
Well done.
Good job
I'm here for the Golden Ratio.
Easy I did it at a exam today
Hope it went well
Thanks sir
You're welcome
Thank you!
Thank u soo much ❤
this is really nice😊😊📝
Thank you
Thank you very much🎉🎉🎉❤❤❤❤
Thankyou
I don't know what I did wrong, but my top point sits outside the circle.
THANK YOU SO MUCH
Bro what was the length of the first lines wth a and b bro
thank you for the pentagon ,, can i have one for heptagon
Working on it.
Aj hi practical h aur ab padh rha 😢😂
Best ❣️
Thanks
You're welcome
Well i guess i need to find a video explain the middle point method then come back when you placed the compass on 6 where is the compass set just random? Depend on the compass distance spot 5 could be out in space, ive
Watched 3 different channels on how to draw a pentagon and every video theres a question i do appreciate you talking the other videos play music donr talk and just start slapping lines down and readjusting the compass and the title says SUPER EASY, probably is once you learn how
thank you
You're welcome
Thank you so much
Please do a video how make a dodecahedron
At this point you will have to wait, as I am working on other videos at the moment. What I can recommend is to find the point used for a hexagon and just double the distance. That will give you the point for a dodecagon.
Anyone watching because of exams😂
Thank you sir
Helped
Prefection
Thank you
Here I am in 2024
What is the distance of line AB
Is it a regular pentagon??
Correct
Salmat bro
It has worked
Pls can you do a video of a triangle and oval
Luv mam I like your voice
First time hearing someone say that. Thank you.
Gracias
thankss
Thanks a lot of
How to draw a pentagon with 2 sides of length 1 inch each
❤❤❤❤❤