The length of the diagonal of a square is 8 cm. How long are the sides of the square?

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Answer 1 · 2016-10-26T11:41:20

#5.66#

The sides of a square are equal. Let's call the length #x#

Use Pythagoras' Theorem.

Square the sides and add them together....

#x^2 + x^2 = 8^2#

#2x^2 = 64#

#x^2 = 64/2 = 32#

#x = sqrt32#

#x = 4sqrt2#

#x = 5.66#