Question

perimeter of semi circle whose radius 'a' is ​

Answer 1

Answer:

$a(\pi + 2)$

that's the answer

Answer 2

Answer:

perimeter of semicircle = r(π+2)

= a(π+2)

on taking π=22/7

= a(22/7+2)

= a(36/7)

= 36a/7

option 4.

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