The perimeter of a square is equal to the perimeter of a rectangle of length 20 cm and breadth 14 cm. Find the circumference of a semicircle whose diameter is equal to the side of the square. (Round off your answer to two decimal places)	Choose one
A) 23.57
B) 25.54
C) 26.5
D) 26.55
E) 26.71
Let the side of the square be a cm.   Perimeter of the rectangle = 2(20 + 14) = 68 cm   Perimeter of the square = 68 cm   i.e. 4a = 68   A = 17   Diameter of the semicircle = 17 cm   Circumference of the semicircle   = 1/2(∏)(17)   = 1/2(22/7)(17) = 26.71 cm to two decimal places   Answer: 26.71
<result>E</result>
The perimeter of a square is equal to the perimeter of a rectangle of length 20 cm and breadth 14 cm. Find the circumference of a semicircle whose diameter is equal to the side of the square. (Round off your answer to two decimal places)