in the given figure ab is the diameter of the larger semicircle a b is equal to 21 CM = = semi circles are drawn with a m and n d as shown using pi = 22 by 7 calculate the area of the shaded region
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It is given that
radius
r = 21/2 Cm
thus area of semicircle
Area = pi/2 r^2
= 22/7 * 21/2 * 21/2
= 346.5 Cm^2
Thus
area of shade region
A = 3 * area
= 3 * 346.5
= 1039.5 Cm^2
radius
r = 21/2 Cm
thus area of semicircle
Area = pi/2 r^2
= 22/7 * 21/2 * 21/2
= 346.5 Cm^2
Thus
area of shade region
A = 3 * area
= 3 * 346.5
= 1039.5 Cm^2
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