Question 107

The perimeter of a semi-circle is 396 cm. Thenits diameter (in cm) 1s:

given that the perimeter of the semicircle = 396 cmΒ 

we know that the perimeter of the semiicircle = (1 + $$\pi$$\2) $$\times{d}$$Β 

equate both the value

Β  (1 + $$\pi$$\2) $$\times{d}$$ = 396 cmΒ  put the valueΒ $$\pi$$ = 22\7

(1 + 22\14)Β $$\times{d}$$ = 396Β 

Β  Β  Β  Β  Β  Β  Β  Β  Β  Β  Β  Β  Β  Β  Β  Β  Β dΒ  Β  = 154 cmΒ  AnswerΒ  Β Β 

Β  Β  Β  Β  Β  Β  Β  Β  Β  Β  Β  Β  Β  Β  Β Β 

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