This Maths puzzle will make you question everything

WHY WON'T THEY MATCH

This Maths puzzle will make you question everything

Prepare to get seriously annoyed.

Take a look at the two triangles below, both composed of the same four coloured shapes, arranged differently in formation A and B.

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The same four shapes, right?

SO WHY IS THERE AN EMPTY SQUARE IN THE SECOND TRIANGLE?

Well, it's actually because rearranging the four shapes creates an ever-so-slightly different triangle.

In fact - neither 'triangle' is actually a triangle. Their 'hypotenuses' are actually made up of two lines, at different angles - so they are, in fact, quadrilaterals.

Triangle A has the lines creating a 'concave' shape, while Triangle B creates a 'convex' shape.

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Thus, Triangle B has a slightly larger area, which is exhibited in the extra empty square.

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The gif below helps explain it.

BUT WE'RE STILL NOT SURE WE BELIEVE IT.

Marc Chacksfield
Content Director

As Content Director of Shortlist, Marc likes nothing more than to compile endless lists of an evening by candlelight. He started out life as a movie writer for numerous (now defunct) magazines and soon found himself online - editing a gaggle of gadget sites, including TechRadar, Digital Camera World and Tom's Guide UK. At Shortlist you'll find him mostly writing about movies and tech, so no change there then.