The height of a right circular cone is 5 cm and its base radius is 12 cm. What is the curved surface area of the cone?
cone = $$\pi\times r\times l$$
Given
Height = 5 cm
Radius = 12 cm
So Slant height=$$\sqrt{5^2 + 12^2}$$ = 13 cm
Cone =Â $$\pi\times 12\times 13$$
       $$156 \pi cm^2$$
     Â
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