Question

A square has an area of 457.90m2 work out the perimeter of the square

Answer 1

perimeter = 85.6 cm (nearest tenth)

Explanation:

Area of a square =
`x^2`, where
`x` is the length of one side

Given area = 457.90 m²²

⇒ 457.90 =
`x^2`

⇒
`x=√(457.9)`

⇒
`x=21.4 \ \textsf{cm (nearest tenth)}`

Perimeter of a square =
`4x`, where
`x` is the length of one side

⇒ perimeter =
`4 * √(457.9)`

⇒ perimeter = 85.6 cm (nearest tenth)