Question

perimeter of semicircle is 36cm.what is the length of diameter​

Answer 1

Answer:

The perimeter of a semi-circle = πr+2r

where r is the radius of the circle.

πr+2r=36

r(π+2)=36

r=36π+2=36227+2=36×736 = 7cm.

Therefore, Diameter of the semi-circle = 2×7= 14 cm.

Answer 2

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