from a circular sheet of diameter 21 CM a circle of diameter 7 cm is removed find the area of remaining sheet
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Radius = 21/2
Area = πR^2
= 22/7×21/2×21/2
= 11×21×3/2
= 693/2
radius = 7/2
area = πr^2
= 22/7×7/2×7/2
=11×7/2
=77/2
remaining area =693/2-77/2
= 654/2
Area = πR^2
= 22/7×21/2×21/2
= 11×21×3/2
= 693/2
radius = 7/2
area = πr^2
= 22/7×7/2×7/2
=11×7/2
=77/2
remaining area =693/2-77/2
= 654/2
Adityakaprawan:
where 2 comes
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