diameter of the base of a cone is a 10.5 cm and its slant height is 10 cm find is covered surface area
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diameter of the base of a cone is a 10.5 cm and its slant height is 10 cm find is covered surface area
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Here r =(10.5/2)cm
=5.25cm and l=10
Curved surface area if the cone=πrl cm square
=(22/7×5.25×10)cm square
=165 cm square..
Hope it helps