# What is the length of the side of a square whose diagonal is 10?

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Apr 13, 2016

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Draw a diagram to represent your situation.

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Since we're dealing with a square, all side lengths measure the same thing. Furthermore, the angle B and D are right, therefore allowing us to use pythagorean theorem to find the value of a.

#color(blue)(a^2 + b^2 = c^2#

Where

Since

The diagonal is the Hypotenuse

So, the side lengths measure

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