Question

Semicircular lawns are attached to both adges along the breadth of a rectangular lawn measuring 70 m by 40m. Find total area enclosed.

Answer 1

Area of the figure=rectangle+four semicircle
Area of the rectangle is 70*40=2800
Area of four semicircles are
$(70 \times 70 \times \pi) + (40 \times 40 \times \pi)$
=20420.35
So, total area is 2800+20420.35=23200.35