Question

find area of a garden which is rectangular at middle and semi circulat at both the ends. Its total length is 40 m and breadth is 7 m

Answer 1

$area \: of \: a \: garden \: is \: rectangular \: 2 \times l \times b \\ \\2 (l \times 40 \times b \times 7 )= 280 \div 2 = 140$