Question

Find, leave your answers in terms of pie,
a) the area of the shaded region,
b) the perimeter of the shaded region​

Answer 1

area of square = 10x10
= 100
area of circle = pi(r)^2
= pi (5)^2
=25pi

area of shaded = 100 -25pi

circumference of circle = 2pi (r)
= 2pi(5)
= 10pi

perimeters of shaded = 10pi + 10 + 10
= 10pi +20