Question

In the given picture shown two semicircular shaped iron bar can be cut down from a rectangular shaped iron bar. Calculate the area of the remaining shaded portion.

Answer 1

Area of the rectangle = 24 × 14 = 336 cm²

Area of two semicircle = Area of a complete circle

Diameter of the circle = 14 cm

Radius = 7 cm

Area of the circle = π r²

= π × 72 = 49

π = 153.86 cm² Area of the remaining portion

= 336 – 153.86= 182.14 cm²