Question

The diameter of the base of cone is 10cm then radius of its base....​

Answer 1

You must add Corrent Question we start and what we find.

Correct Question:- Diameter of the base of a cone is 10.5Cm and its slant height is 10Cm Find its curved surface area.

Answer:- 165Cm²

Solution:-

Diameter of the base = 10.5 Cm.

Radius of the base

$(r) = \frac{10.5}{2} cm = 5.25cm$

$Slant \: height (l) = 10cm$

Curved surface area of the cone

$= \pi \: rl = \frac{22}{7} \times 5.25 \times 10 = 165cm {}^{2}$