Question

A square has a diagonal of length 5 cm. What is the area of the square?

Answer 1

12.5 cm²

Explanation:

a² + b² = c²

a² + a² = 5²

2a² = 25

a² = 12.5

a = √12.5

A = s²

A = (√12.5)²

A = 12.5