In a circle of radius 21cm an arc substance an angel 60 at the centre find the area of sector
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Total area of circle = πr²
= 22/7×21×21
= 22×3×21
= 1386cm²
it is area of 360° but we find to 60° covered area
ans= 1386/6= 231cm²
= 22/7×21×21
= 22×3×21
= 1386cm²
it is area of 360° but we find to 60° covered area
ans= 1386/6= 231cm²
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