given that the perimeter of the semicircle = 396 cmÂ
we know that the perimeter of the semiicircle = (1 + $$\pi$$\2) $$\times{d}$$Â
equate both the value
 (1 + $$\pi$$\2) $$\times{d}$$ = 396 cm put the value $$\pi$$ = 22\7
(1 + 22\14)Â $$\times{d}$$ = 396Â
                 d  = 154 cm Answer  Â
               Â
Create a FREE account and get: