Question

How much is the shaded area?
Fully solve ​

Answer 1

Area of entire figure = 0.5 π(4.5)² + 0.5 π(1.5)²

Area of shaded region =

area of the entire figure - area of unshaded circles

= 0.5 π(4.5)² + π(1.5)² - 2(0.5π(1.5)²) - π(2.25)²

= π ( 0.5(4.5)² - (2.25)² )

= 5.0625π cm²

Answer 2

This is the detailed answer.