Question

To determine the surface area and volume of a cone, the three values you need are the slant height, altitude, and Question 3 options: A) arc length. B) circumference. C) radius. D) diameter.

Answer 1

C) Radius.

Explanation:

When looking at a shape like this is is crucial to know the circumference because Area is L*W*H In order to determine your width you will need the Radius.

Answer 2

radius is the other quantity needed, which appears listed as option C in the list of possible answers.

Explanation:

Recall that the volume of a cone is given by the formula:

`Vol=(1)/(3) B\,*\, H`

where B is the area of the base:

`B=\pi\,R^2`

with R being the cone's radius at the base, and H the cone's height.

The formula for the surface area of the cone also needs the size of the radius.

Therefore, the radius is the other needed quantity.