Question

find the area of a square pqrs formed by joining the Mid Points of sides of another square ABCD of Side 9√2 cm

Answer 1

Area of square PQRS
$4 \times {side}^{2} \\ = 4 \times (9 \sqrt{2})^{2} \\ = 4 \times 81 \times 2 \\ = 648$