Find the curved surface area of a cone whose radius of base is 7 cm and slant height is 8 cm. [Use $$\pi = \frac{22}{7}$$]
the curved surface area of a cone =Â $$\pi\ \times\ radius\times slant\ height$$
=Â $$\frac{22}{7}\ \times\ 7\times8$$
= $$22\times8$$
= 176Â $$cm^{2}$$
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