Question

Find the curved surface area of a cone with base radius $$5.25$$ cm and slant height $$10$$ cm.

Answer 1

Correct option is A. $$165$$ $$cm^2$$.
We have,
$$r=5.25$$cm and $$l=10$$cm.

$$\therefore$$ Curved surface area$$=\pi rl$$
$$=\dfrac{22}{7}\times 5.25\times 10cm^2$$

$$=165cm^2$$.