Triangle Illusion

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Introduction: Triangle Illusion

About: High school student, not really much else.

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

Step 1: Step 1: the Triangle

First, start with a perfect triangle, like so.

Step 2: 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

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

Step 4: 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

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

Step 6: Step After Last Step

Shade ,like so. You are done! Please comment

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    19 Discussions

    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

    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?)

    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

    1 reply

    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!

    1 reply

    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.

    1 reply