The parameter of a square is equal to the perimeter of a rectangle of length 16 cm and breadth 12 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) 22 cm
B) 47.14 cm
C) 84.92 cm
D) 94.94 cm
E) 23.57 cm
Let the side of the square be a cm.   Parameter of the rectangle = 2(16 + 12) = 56 cm Parameter of the square = 56 cm   i.e. 4a = 56   22 cm = 14   Diameter of the semicircle = 14 cm   Circimference of the semicircle   = 1/2(∏)(14)   = 1/2(22/7)(14) = 308/14= 
<gadget id="calculator">308/14</gadget>
<output>22</output>
22 cm   22 cmNSWER:22 cm
<result>A</result>
The parameter of a square is equal to the perimeter of a rectangle of length 16 cm and breadth 12 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)