The slant height of a right circular cone is 10m and its height is 8m. Find the area of its curved surface.

The slant height of a right circular cone is 10m and its height is 8m.

1.	The slant height of a right circular cone is 10m and its height is 8m. Find the area of its curved surface.
A.	\[30\pi \,{{m}^{2}}\]
B.	\[40\pi \,{{m}^{2}}\]
C.	\[60\pi \,{{m}^{2}}\]
D.	\[80\pi \,{{m}^{2}}\]
Answer» D. \[80\pi \,{{m}^{2}}\]

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The slant height of a right circular cone is 10m and its height is 8m. Find the area of its curved surface.

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