In the given figure, three semicircles of diameters AB = 8 cm, BC = 4 cm
and CD = 2 cm are drawn.
Find the following:
(i) Area of the shaded portion.
(ii) The length of the boundary of the shaded region.
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Answered by
18
Circumference of semi-circle =d+ πd/2
Length of boundary of shaded portion =8+ π(8)/2 + 4 + π(4)/2 + 2 + π(2)/2
= 14 + 7π
= 14 + 7× 22/7
= 36 cm
Answered by
8
Answer:
Circumference of semi-circle =d+ πd/2
Length of boundary of shaded portion =36 cm
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