Find the surface area and volume hello with

First, let's consider what information we have.

We are given a right circular cone with a radius of 10 km and a diagonal of 22.4 km.

There are two formulae that we need: one for its volume and one for its surface area.

The volume of a cone is , where B is the area of the base and h is the height. The base of a cone is a circle, so we use the area of a circle, , to get .

We aren’t given the height explicitly; however, using the Pythagorean Theorem, we can find it. Treat the diagonal as the hypotenuse of a right triangle and the radius as a leg. We have 

.

Now, we can substitute our values into the formula for volume.

For the surface area, we have the formula , where l is the diagonal that we had in the beginning.

So, we simply write .

table 3 represents a direct variation function. : )