---------------------------------------------------------------- Find Radius : ---------------------------------------------------------------- Radius of the semicircle = 10 ÷ 2 = 5cm
---------------------------------------------------------------- Find Area of the semi circle : ---------------------------------------------------------------- Area of the semi circle = 1/2 πr² Area of the semi circle = 1/2 x π x (5)² Area of the semi circle = 12.5π cm²
---------------------------------------------------------------- Find Radius : ---------------------------------------------------------------- Radius of the inner circle = 5 ÷ 2 = 2.5 cm
---------------------------------------------------------------- Find area of inner circle : ---------------------------------------------------------------- Area of the inner circle = πr² Area of the inner circle = π x (2.5)² Area of the inner circle = 6.25π
---------------------------------------------------------------- Area of the shaded region : ---------------------------------------------------------------- Area of the shaded region = 12.5π - 6.25π Area of the shaded region = 6.25π Area of the shaded region = 19.63 cm²
---------------------------------------------------------------- Answer: Area of the shaded region = 19.63 cm² ----------------------------------------------------------------
