Answers

2016-02-19T18:04:51+05:30
Perimeter of the shaded region = perimeter of bigger semi-circle + 2 (perimeter of smaller semi-circles)
= 22/7 * 28 + 2(22/7 * 14 )
= 88 + (2 * 44)
= 88 + 88
= 176 cm
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