Question

if diagonal of a square is 80 cm find its area

Answer 1

✰✰|| Given ||✰✰

• diagonal of square = 80cm

✰✰|| To Find ||✰✰

• Area of square

✪|| Solution ||✪

Area of square = diagonal² ÷ 2

⇒ Area of square = (80cm)² ÷ 2

⇒ Area of square = 6400cm² ÷ 2

⇒ Area of square = 3200cm²

Area of square is 3200cm²

Answer 2

Given : -

• diagonal of a square is 80 cm

To find : -

• its area

Solution : -

Area of square : - $\Large\sf\frac{Diagonal \:x \: Diagonal}{2}$

Area of square : - $\LARGE\sf\frac{(80cm \: x \:80cm)}{2}$

Area of square : - $\LARGE\sf{\frac{6400cm}{2}}$

Area of square = 3200cm²