Question

find the length of a diagonal of a square if its area is 484cm

Answer 1

Hiii....

Area of square = a^2 ....

$a = \sqrt{484}$
.... a = 22 ....

Length of diagonal =
$\sqrt{ {22}^{2} + {22}^{2} } = 22 \sqrt{2}$
......☺☺☺☺

Answer 2

Side=22
diagonal=side×1.414=22×1.414=31.108