Math, asked by 999bhasyn, 1 year ago

Please solve this for me !!!

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Answered by Anonymous

0

Perimeter of a semicircle= πr+d

so

πr+d= 15.42 km or 15420 m

3.14 ( r) + 2r = 15.42 ( d= 2 r )

r [ 3.14 +2 ] = 15.42

r[ 5.14 ] = 15.42

r= 15.42÷ 5.14

r= 3 km Answer.

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