The perimeter of square is equal to twice the perimeter of a rectangle if length 8 cm and breadth 7cm.What is the circumference of a semicircle whose diameter is equal to the side of the square
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as perimeter of square is equal to twice the perimeter of the rectangle i.e l=8cm,b=7cm
2×8×7=112
if diameter is equal to the side of the square then the answer is 56 cm
2×8×7=112
if diameter is equal to the side of the square then the answer is 56 cm
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perimeter of rectangle = 2(L+B) =2(8+7)=30 cm
Perimeter of square = 2x30 = 60cm
Side of square = 60/4 = 15 cm
Circle whose diameter is equal to side of square has a radius of 15/2 = 7.5 cm
Circumference of semicircle with radius 7.5 cm = 3.14 x 7.5 + 2x7.5 = 38.55 cm
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