Find the perimeter and area of the given shape represented by bold lines.
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Step-by-step explanation:
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ABCD is a rectangle with CD = 21 cm
and AD = 14 cm
Area = 21×14 = 294 cm^2
perimeter = 2(21+14)
= 70 cm
Area of big semicircle = 1/2×22/7×441
= 693 cm^2
perimeter of semicircle = 22/7×21+2×21
= 108
area of small semicircke 1/2×22/7×196
= 308 cm^2
perimeter of semicircle = 22/7×14+2×14
= 72 cm
required area = 294+693+308
= 1295 cm^2
required perimeter = 70 +108+72
= 250 cm ^2
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