Question

if the area of semi circle be 77m2 find the perimeter give full explanation​

Answer 1

Answer:According to the question,

Area of semi-circle = 77 m

12πr2=77

=> r2=77×2×722

Therefore, r = 7 m

Therefore, Circumference of semi-circle = πr+2r

= (π+2)r=(227+2)×7 = 36 m

Step-by-step explanation:

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