How to divide a circle into nine equal parts

No video

How to divide a circle into nine equal parts

Рет қаралды 31,299

Күн бұрын

Learn how to split a circle into 9 equal sectors and how to construct a regular nonagon inscribed in.
This KZfaq channel is dedicated to teaching people how to improve their technical drawing skills. It focusses on drawing figures from the geometric plane to descriptive geometry and also different systems of technical drawing representation.
If you subscribe, click, like or leave a comment you will be helping us to grow our channel and help more people with their technical drawing skills.
Thank you in advance.
Dubbed by Frank Shaw.
Music by Antonio Fernández Ruiz. antoniofernande...
#Geometry #HowtoDraw
Make a Donation: www.paypal.com... .

Пікірлер: 27

@StarNumbers 3 жыл бұрын

Exactly!?

@ArthurGeometry 3 жыл бұрын

Aproximation

@StarNumbers 3 жыл бұрын

@@ArthurGeometry Thanks. Yet, I am intrigued because I've read that some geo constructions of the 9 pointed star can be as close as 0.001% from exact. I think the property of the exact geo division of a circle (2, 3, 5 plus their 2x multiples) is an exceptional property because that is where integers and the transcendental numbers meet. Kinda existential...

@veritas5008 8 ай бұрын

Clear, concise and accurate. Much appreciated! 👍

@bhagyark4143 3 жыл бұрын

Superb, thanks for simplifying it, was in need of it so much. God bless you.

@BariumCobaltNitrog3n Жыл бұрын

Making a centrifugal blower fan from scratch, I found some success with the compass, but needed a repeatable method of finding points around a circle. This method seems a bit nefarious using points outside the circle, but it seems to work. I'm now being told that there are infinite sets that are bigger than others. Thank you for this.

@deongovender246 2 жыл бұрын

Thank you, it works

@dirtdeodara5449 Жыл бұрын

This video is fantastic. Thank you for illustrating this process so clearly!

@wdwdHenry9022 3 жыл бұрын

Bless you may the light shine upon you

@AngryHybridApe 3 жыл бұрын

Works great here. But I've done it step by step 6 times and it never comes out equal.

@joyshankarrajkumar9024 4 жыл бұрын

thank you👍

@emiliyanpaunov8620 Жыл бұрын

Thanks, that is great! What is the theory behind this method though?

@khushirana7249 2 жыл бұрын

Thank you sir 🙏

@MrTarrman 3 жыл бұрын

phenomenon! thank you !

@feelthewyrd 4 ай бұрын

It’s impossible to construct the angle 360/9 = 40 degrees using a straightedge and compass. (It is possible using a marked straightedge or a ruler.) The problem comes down to trisecting angles. We can trisect our circle once, giving 120 degrees Bisecting is always available so we get 60 and 30 degrees. But there’s no way to get 40 degrees without another trisection, which is impossible with a straightedge and compass.

@aditichakraborty4681 3 жыл бұрын

I tried,EF is smaller than other🙃,in this picture also

@beteart 6 ай бұрын

It happens to me too.

@maqboolahmad9301 2 жыл бұрын

How you decide (calculate) Q-U, should be right distance for any circle can explain by calculations ,Please.

@aditichakraborty4681 3 жыл бұрын

😍

@meenamooch 3 жыл бұрын

im here in 2021 😎

@francescagiacomelli5950 4 жыл бұрын

I tried, this gave me 10 points not 9 o.o

@AngryHybridApe 3 жыл бұрын

I get unequal sections. I've tried it several times too.

@mopoerapesminecraft 4 жыл бұрын

smartest

@BlissRemedy 2 жыл бұрын

mmm googul pzza

@oelekegel 2 жыл бұрын

now i can draw a biblically accurate enneagram

@HaydarALsadee 2 жыл бұрын

فعلت ذلك اكثر من مره ولم يتساوى ابداً أنت تتلاعب في الفرجال لقد ركزت في ذلك جيداً ،، تتلاعب بهِ في النهاية عند استخراج 9 فروع تقوم بأبعاد الفرجال شيء بسيط عن خط التحديد وهذا الشيء البسيط هو الذي يقوم بمساواة الفروع ال9 لقد كشفتك أنت مخادع جيد

@abdellahbellafqi3357 2 жыл бұрын

يا صديفي هو ليس مخادعا فهو يعطي طرقا مبسطة لتقسيم الدائرة و التي نسميها بالتقريب و تكون نسبة الخطأ فيها ضئيلة جدا لا أقل من 0.5 في المئة لذا من الطبيعي أن يظيف قليلا جدا لتتساوى الأضلاع لأنه تقريب و إضافة لذلك فإن الطريقة نجحت معي جيدا