Question

If the diagonal of a square is 10√2 what is the perimetre of the square

Answer 1

diagonal=underroot2*side
so side =10
and perimeter=4*side
which is 40

Answer 2

If the diagonal of square is = 10✓2

So the side of square is = 10 .

Hence the perimeter is = 10 × 4

= 40.