Find the area of shaded region between two concentric circles of 10.5 radis of a circles 3.5cm shaded portion
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Step-by-step explanation:
given,
r1=3.5cm
r2=10.5cm
area of first circle=Pi.r1^2
22/7×3.5×3.5
22×0.5×3.5
area of second circle=pi.r2^2
22/7×10.5×10.5
so to find the shaded region
area of second circle-area of first circle
(22/7×10.5×10.5)-(22×0.5×3.5)
22×14=308cm^2
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