find the perimeter of the shaded region
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Step-by-step explanation:
perimeter of shaded region = perimeter of big semi circle - perimeter of small semi circle
perimeter of big semi circle = pie×r
= 22/7×14
=44 cm
perimeter of small semi circle = pie × r
= 22/7×7/2
=11 cm
perimeter of shaded region = 44-11 = 33 cm
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