Which equation represents the area of one base of a cylinder if the radius is doubled?

If the radius is doubled, then the area of one base of a cylinder  quadrupled and the equation is:

The surface area of a solid is the total area of its outer surface. For a cylinder whose radius of its circular base is , and height , then the surface area (S) can be calculated as:

So, if the radius is doubled then the area of one base is:

146%

step-by-step explanation:

3x + 18 = 147°

step-by-step explanation:

3x + 18 = 147°, because the value of the central angle is equal to the value of the arc formed by it.

i hope i you.