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Square

Calculate the...

Question

Calculate the diagonal of a square whose each side is $9$ m

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Solution

Side of a square $= 9 m$
Diagonal is the hypotenuse of sides of $9 m$ in a square.
By Pythagoras theorem,diagonal $= \sqrt{9^{2} + 9^{2}} = \sqrt{81 \times 2} = 9 \sqrt{2} m$

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