Question

find the side of a square whose diagonal is 20 root 2 cm

Answer 1

let the triangle be ABC
If AB is hypotenuse than AB & AC will be the sides
AB =1/root 2x AC
= 1/root 2 x 20 root 2
=20 cm

Answer 2

diagonal of square=under root 2 a=20^2
a=20^2/^2, a=20