The parameter of a square is equal to the perimeter of a rectangle of length 8 cm and breadth 6 cm. Find the circumference of a semicircle whose diameter is equal to the side of the square.
Choices: A) 23.56 B) 23.59 C) 23.55 D) 23.53 E) 11.0
Let the side of the square be a cm.   Parameter of the rectangle = 2(8 + 6) = 28 cm Parameter of the square = 28 cm   i.e. 4a = 28   A = 7   Diameter of the semicircle = 7 cm   Circimference of the semicircle   = 1/2(âˆ)7   = 1/2(22/7)(7) = 11 cm   Answer:11.0
<result>E</result>
The parameter of a square is equal to the perimeter of a rectangle of length 8 cm and breadth 6 cm. Find the circumference of a semicircle whose diameter is equal to the side of the square.