Question

The length of the diagonal of a square is 30square root 2 find the perimeter of the square

Answer 1

120.

Explanation:

Using the Pythagoras theorem:

(30√2)^2 = x^2 + x^2 where x =length of each side of the square

1800 = 2x^2

x^2 = 900

x = 30.

So the perimeter = 4*30 = 120.