Question

 AC and BD are two perpendicular diameters of a circle with centre O. If AC = 16 cm, calculate the area and perimeter of the shaded part. (Take π = 3.14).

Answer 1

Given radius of circle is 8 cm.

Area of shaded part = `1/2 π r^2 = 1/2 xx 3.14 xx 8^2`

Area of shaded part = 100.48 cm²

The perimeter of shaded part = πr × 4r

The perimeter of shaded part = 3.14 × 8 + 4 × 8

The perimeter of shaded part = 25.12 + 32

The perimeter of shaded part = 57.12 cm.