Question

Solve for the area of the square.

Answer 1

The area is
`21.5 cm^2`(if no need to round)

The area is
`22 cm^2`(if need to round to nearest whole number)

Explanation:

10 x 10 = 100

5 x 5 x π = 25 π

25 x 3.14 = 78.5

100 - 78.5 = 21.5

digits of pi:3.14...

Answer 2

area of square = 10 x 10 = 100 cm²

area of circle = πr² = (3.14)(5²) = 78.5 cm²

area of shaded portion = 100 - 78.5 = 21.5 cm²