How to draw a regular pentagon knowing the length of one side

Regular pentagon given the measurement of one of it´s side, using a compass and a 45º set-square.
Make a Donation: www.paypal.com...
This KZbin 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

[@enma_nexa]

I got scared looking the intro , i though it was the actual construction😂

[@meghanworkman6449]

I'm glad it wasn't just me lol.

[@ericwu6571]

lol

[@mickelplays9386]

Lol good one

[@collinsusiade4054]

Heptagon

[@fredricholst5362]

Shaikh Shoeb HAHAHAHA i agree

[@noxie_nay]

Let me guess you're here because you have an EGD exam coming soon I know...I know same reason

[@mildmanneredmercifulmouse1839]

This is BETTER than watching a Hollywood blockbuster movie.!!

[@deckiedeckie]

Great.....to see how KZbin can be utilized to do useful stuff....

[@indranilkundu9101]

I have to draw all the polygons from 3 sides to 8 sides for my project. Your videos really helped me. I couldn't have asked for a better tutorial. Thank You sir.

[@FUNKINETIK]

So interesting, I can see how this works now. From the line AB you have determined the point Q. The line AQ is the golden ratio (Phi) of AB. The opposing corners of a pentagon e.g. line AD is the result of multiplying the side length of the pentagon by Phi (1.618....)

[@ochembachinwendu7113]

Bruh🙄

[@shirafields244]

I needed to make a pentagon with 5” sides for my 3D art class and this was extremely helpful; turned out perfect. Thanks!

[@official_Azmath]

🙏💕 thank you you help all students👦📖🎒👦📖🎒👦📖🎒

[@user-wl7ot8lr5p]

Thank you sir apne mere submission me help ki 🤗

[@dorcaslagracetiche4639]

Wowwwwww. It actually works. It's like magic.😮. May God bless you😇 and Thank you sir.😋

[@billyspencer7325]

This was a tough one kept getting confused over the changing radius and where to put the compass point, had to rewatch a fair few times

[@KeeperofTheMountain]

I am building a 5 sided cupola to go on a pentagon shaped gazebo. It is an inverted radius conical cupola. I needed this one formula to lay it out. Thank you.

[@stephonramsaran7704]

awesome video helped me so much god bless ya bro

[@bibibacchus4059]

Oh wow, it turned out great. Thank you so much !!

[@xx_cuddlyclouds_xx5733]

Thank you Aurther Geomitry!!!You helped me with my module in my math!it was so hard until I saw this!!😄😄😄

[@robertoyllia8373]

you are the best one

[@tugalgito]

OMG! this type of videos are amazing for do arts homeworks.

[@deathwalker8730]

Thank u so much have a test tomorrow and this helped me loads fam thanks

[@starkiller1228]

Thanks man, your better than my teacher

[@Jacobballeez]

Im doing technical drawings and I missed this class so thank you

[@rrkanb]

Love from Nepal

[@jacklinemmaduagwu8037]

Omg so simple and easy. I got it on the first try. Thanks.🤗🤗

[@KarimiChelsea]

Was stuck on an assignment and this helped me out. Gracious 😇

[@Varadpatil924]

Thank you so much

[@olliegibbons843]

A god amongst men,thank you

[@Kitsomia]

That's Awesome, I always wanted to draw a pentagon without using a protractor.

[@marc_0]

I've been saved Thank youuuuu

[@uevankhell]

Ah seriously, thank you so much. I've already watched two of your videos and it's been going great! Taking Tech Draft class was probably a bad one on my side but I can't help but try to widen my knowledge at some point.

[@Satoru_Gojo36817]

Thanks for your tutorial.

[@bhupeshshah272]

This help me a lot in my submissions

[@arthurgrunwald3859]

Thank you very much for your wonderful video! it is so brilliant! Since not all methods are exact, I was curious to find out whether the angle QBC is indeed 72 degrees. So, I tried to proof it as follows: First, use the right-angle triangle MBP to compute the length MP. For clarity, denote the base AB = b. This yields MP=0.5*b*sqrt(5). We now compute the length AC which equals AQ. Since AQ = MP + 0.5*b, it follows that AC = 0.5*b*(sqrt(5) + 1)). The triangle ABC has a base length of AC and two equal sides of length b. Using the cosine rule: AC^2 = 2*b^2 - 2*b^2*cos(gamma), where gamma is the angle ABC. This yield cos(gamma) = 0.25*(1 - sqrt(5)).= -0.3090. gamma = acos(0.3090) = 108 degrees. The angle QBC is then 180 - 108 = 72 degrees. It remains to be proved that point D is indeed the top of the pentagon. This is proved by the fact that the triangles ABC and BCD are congruent and thus BC = CD. Arthur, in contrast to other methods, your method is exact! Thank you again for your crystal-clear video which inspired me to do this exercise with tools we learned 50 years ago. Let me know if I missed out on something.

[@rosaliavadeliveiwase613]

Thank you so much sir....26/10/2021....Really help me with my school work

[@Narja23]

thanks you, it's so helpful

[@goldenadhd3149]

4 years later and you're helping me pass my last year of school

[@christellebosch6008]

Thank you it helped ma a lot

[@M_R_H_Rokib]

Please give us a video on "Drawing Pentagon Using Perpendicular bisector method"

[@ArthurGeometry]

Copy that. Thanks!

[@M_R_H_Rokib]

@@ArthurGeometry Welcome 🥰

[@hibeelhachasan1232]

Thank you very much ❤

[@tronrevel7751]

Pentagon process is lit

[@andymarkle465]

enjoy this pentagon is very beautiful, thanks very much. cute pentagon!

[@Jacobballeez]

Sir thank you very much

[@sunilchristian3430]

Thank you!

[@chrystopherluke1261]

I have a hmwrk assessment to do and this helped a lot

[@rhy4551]

Phyc Ward SAME.

[@6rw1b]

Finally found one that works, much appreciated thank you so much!

[@sfisosmall6226]

Thank you this will help me on my drawing s

[@iukaz8682]

LEGEND!!!

[@elim.8315]

THANK YOU SO MUCH u explained it so well

[@ebrimasamba8277]

Nice man

[@indt1648]

very useful, good job

[@CHANVER_07]

Thanks!

[@theopokashimba2897]

Wonderful... this is so helpful, i have been struggle to draw a pentagon now i got it exactly. Thanks more your video helped me out.....

[@hrishikeshtambe4332]

Thankz alot....u really explain very well and it's very easy to understand

[@ratulhasan7136]

Sir, Thank you so much. Because I was badly in need of a Pentagon. This video is easier than others.

[@sumitabasak9244]

Right

[@sumitabasak9244]

You say right

[@pururaj2920]

Very good and easy steps

[@Konijvis]

thank you, keep up the good work in teaching and helping students.

[@poorvanair3666]

Ommmggg ur a live saver !!

[@milos-nq1lm]

Thank you

[@raven1742]

Thank you so much man i love you Fun fact: i am from italy and i understood YOUR explanation and not my teacher one LOL

[@nerminsejdinovic8696]

Thanks a lot, Sir! Really helpful and easy to learn.

[@Kholanee]

Oh you GODSEND

[@marikanaseidu3884]

thanks for this video

[@siyasundriyal9543]

Sir...this video is good

[@idlanbruhanuddin9447]

thnx......i actually know a method tht can draw a pentagon too easier though...but i cannot remember.....it all starts w/ cross and circle.....but urs are a bit complex but still easy to understand....

[@Jacobballeez]

Rlly appreciate it

[@dimplematutino]

Thank you so much!😊✍

[@asamikimura5584]

Thank youuu❤❤

[@daygelguzman944]

Super it helped me a lot

[@sanjeet_art_205]

Thank you so much sir... 👍🏻

[@sarthakchavhan]

thanks you

[@denceldeguzman7189]

thankyou

[@splendor10]

Intro🔥🔥🔥🔥🔥

[@swapnilrai1168]

Thanks it was awesome

[@kiderr384]

First year hw ,

[@arushiarya2190]

Thanks a lot for this my Pentagon turned out perfect!

[@garyriegelsberger4208]

Awesome! Thank you for taking the time to create this video and post it. This is the perfect information I was looking for that will allow me to construct my device.

[@harshavarthinisr6240]

Thank you so much ✨

[@leonardmcoy3001]

Helped a lot thanks

[@spole1699]

Very helpful

[@aqueelahmad7208]

thanks to this i passed my test yesterday

[@tinomutendabrian6777]

Clear information

[@seamusmcardle2610]

first class instruction,thank you.

[@minalikabra2057]

Thanks alot you helped me in My Project☺️🙏🙏

[@legnd8382]

got you as my school homework

[@gurmanjotsinghgrewal4741]

Thanks for video

[@TheOriginalKidCoyote]

thanks! worked for me

[@Pantydropper8374]

waoooo... thank uuuu sooooo much buddy... great help.... great help....

[@mesapetr9985]

Thank you sooo much

[@justjona3260]

Sick bro

[@spectrae2817]

Thanks dude , this vid help alot

[@spring74light]

A very interesting construction. Thank you for it. Have you a geometrical proof that ED and DC are equal in length to AB?

[@anneludlow]

They were constructed with that length on the compass!

[@spring74light]

Thank you for your Reply. With respect, if you look on from about 3:30 you will see that points C and E are each located of by the intersection of 2 arcs, one of which has radius (AB), and the other an arc of greater but unspecified radius passing through point D. DC and DE are not directly referred to distance AB.

[@spring74light]

@glyn hodges Sorry, I have been 'off-air' for a while and have just discovered your detailed and comprehensive Reply. Thank you. I look forward to following through your reasoning, and will respond in due course.

[@bansalsanitary8885]

kzbin.info/www/bejne/nmbRhmmsZ9Voh9k Please watch like comment

[@nkosinathidhlamini2791]

Very helpful thank you

[@tronrevel7751]

really helpful

[@shreyashpatil4319]

Nice sir 👌

[@mohitpanchal2023]

Thank you very much sir

[@thekoreanspace272]

understandable video, nice

[@siddharthrevankar3474]

thank you very much for your easy tutorial!

[@philipalawonde8291]

Am I mistaken, or is this an approximate construction based on the very crude approximation of √5 by √8?

[@droidguy1571]

the best construction vid ever thnx a looooooooooooooooooooooooot!!!!!! LOL

[@dubdavis407]

technically it is not a construction in the euclidian sense, more a drawing.

[@tdrawsa]

Great work! Thank you.

[@generalmalhar6777]

Very helpfull

[@bellasbees3790]

thank you so much