Introduction: Triangle Illusion

Picture of Triangle Illusion

How to draw the impossible triangle, by Penrose, the great illusionist that worked with Escher to make this.

Step 1: Step 1: the Triangle

Picture of Step 1: the Triangle

First, start with a perfect triangle, like so.

Step 2: Step 2: the Extension

Picture of Step 2: the Extension

Extend the lines a little bit, like so. Sorry if its doesn't look the same.

Step 3: Step 3: Second Extension

Picture of Step 3: Second Extension

Then add an Extension off the other extension, longer then the first line, like so.

Step 4: Step 4 : Extension 3

Picture of Step 4 : Extension 3

Extend off the extension you just did, this time the same length as the second extension. If you did not understand anything i just said, look down.

Step 5: Last Step

Picture of Last Step

Now connect, like so.You're almost done!

Step 6: Step After Last Step

Picture of Step After Last Step

Shade ,like so. You are done! Please comment


GorillazMiko (author)2008-03-22

Ha, cool, now I can do this! Great job!

raisanbandit2 (author)2016-12-01

This was not that hard to make once you followed the directing a couple of times. When you look at it the triangle looks really great

nelbryan (author)2015-07-08

Dancingsquid52 (author)2013-02-06

this is soooo cool i have always wanted to dothis!!!

bounty823 (author)2009-03-04

awesome awesome 5 stars awesome awesome aswesome

DanC98 (author)bounty8232011-08-09


ElectricUmbrella (author)2011-03-20

I'm actually a bit jealous that your method for drawing this may be simpler than mine! Good job!
(Also - Do you mind checking out my 'ible on the Penrose triangle and giving your opinion on it?)

Rock Soldier (author)2008-12-09

I don't get is it impossible?

Could you carve this out of wood? I don't think so.

 Well, actually, you could. You ultimately FAIL!

itsmanofpopsicle (author)2009-03-05


coolcody (author)2009-02-16


Trogador (author)2008-08-05

Awesome! God, I've been trying (and failing) to draw this thing forever! Any chance you could do the Blivet next? I hate that thing :P

I've already made the blivet.

cdwae (author)2008-08-07


YummyPancakes (author)2008-03-23

Hmmm... There's a kind of pattern to it, no?

perhaps we've unlocked the secret of The Impossible Triangle! We'll be famous! WOOT! Yeah!

right on!

darth2o (author)2008-03-22

Actually, It was first created by Oscar Reutersvard, and then Roger Penrose popularized it. But M. C. Escher was the first artist to use it. Otherwise nice instructable.

itsmanofpopsicle (author)darth2o2008-03-23

thank you this is my first instuctable and yes i forgot it was by Reutersvard.

About This Instructable




Bio: High school student, not really much else.
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