Diameter of the base of a cone is 10.5 cm and its slant height is 10 cm. Find its curved surface area
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Step-by-step explanation:
Diameter of the base =10.5cm
∴ Radius of the base (r)=
2
10.5
cm=5.25cm
Slant height (l)=10cm
∴ Curved surface area of the cone
=πrl=
7
22
×5.25×10=165cm
2
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