Question

the diaginal of the square its 8cm what is its area

Answer 1

diagonal is root(2)×side = 8
so side = 4×root (2)
area = (side)^2
so area = 32 cm^2

Answer 2

Area of square = ½ × (diagonal)²
= ½ × 8²
= ½ × 64cm²
= 32cm²