Answers

2016-02-28T22:17:59+05:30
Perimeter of semicircle =36 cm
 
πr+2r =36
22/7 r+ 2r =36
22r +14r = 252
36 r = 252
r = 252/36
r = 7
d = 2x7=14

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2016-02-29T17:27:47+05:30
Perimeter of semicircle= πr+2r
perimeter is 36cm
36=22/7r+2r
36=22r+14r/7
36=36r/7
r=36×7/36
r=7
Diameter=2×7
=14
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