The perimeter of a semicircle is 108 cm What is the perimeter of the squaredrawn on the diameter of thr semicircle?
(1) 168Cm
(2) 84Cm
(3) 252Cm
(4)294Cm
Answers
Answered by
4
Answer:
Perimeter of semi circle = pi r + 2r , where r is radius of the semi circle.
(2+pi)r = 108
=> r = 108 / (2 + 22/7 )
=> r = (108*7)/36
=> r = 21 cm
=> diameter ‘d’ = 42 cm
=> side of the square = 42 cm
=> perimeter of the square = 42 * 4 = 168 cm
Answered by
2
Answer:
(1) 168 cm
is the correct answer !!!!
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