Question

Which of the following can be calculated only for a cone but not for a cylinder? (a) base area (b) curved surface area (c) slant height (d) volume​

Answer 1

(c) Slant Height

Cylinder does not have slant height but cone have.

Answer 2

Given: There some properties of cone and cylinder are given.

To find: We have to find the property which can be calculated for only cone.

Solution:

• A cone has slant height l. The volume of a cone is $\dfrac{1}{3}\pi r^2h$. Where h is the height of the cone and r is the radius of the cone. It has base area $\pi r^2$. It have curved surface area$\pi r(r+\sqrt{r^2+h^2})$.
• A cylinder does not have slant height. The volume of a cylinder is $\pi r^2h$. Where h is the height of the cylinder and r is the radius of the cylinder. It has base area $\pi r^2$. It have curved surface area$2\pi r(r+h)$.

So, correct option is c.