A cone of radius 3 cm and slant height 5 cm has curved surface area of ___ $c m^{2}$ .

13 $π$

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14 $π$

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15 $π$

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16 $π$

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Solution

The correct option is C
15 $π$

C.S.A of cone = $π$ rl

C.S.A of cone = $π$ $\times$ 3 $\times$ 5 = 15 $π$ ${c m}^{2}$ .

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A cone of radius 3 cm and slant height 5 cm has curved surface area of ___ $c m^{2}$ .

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