Question

The diagonal of square is 5 square root 2 find its area and perimeter

Answer 1

I hope it will help u

Answer 2

$area = (1 \div 2) \times {(diagonal)}^{2} \\ = (1 \div 2) \times (5 \sqrt{2} \times 5 \sqrt{2} ) \\ (1 \div 2) \times (5 \times 5 \times 2) \\ (1 \div 2) \times (50) \\ = 25$
area is (side)square
area is 25
so side is route of 25 which is 5
perimeter is 4a
4 into 5 and is 20
hope it helps u out