Question

A rectangular piece is 20m long and 15m wide from its four corners, quadrants of 3.5m radius have been cut. Find the area of remaining part.

Answer 1

Length of rectangular piece l = 20m

Breadth of rectangular piece b = 15m

Radius of each quadrant r = 3.5m

Area of rectangular piece = (length × breadth) = 20 × 15 = 300 m².

Area of quadrant each = 14(area of circle with radius 3.5m)

Area of remaining part = [area of rectangular piece] – 4[area of each quadrant]