The height of a cone is twice the radius of its base.
What expression represents the volume of the cone, in cubic units?
A. 2/3πx^3
B. 4/3πx^2
C. 2πx^3
D. 4πx^3

Step-by-step explanation:

From the way the answers are presented, it can be seen that x refers to the radius of the base of the cone

radius:

and we are told that the height is twice the radius, so:

height:

and now we use the formula to calculate the volume of a cone:

where is volume, is radius, and is the height. and is a constant

in this case

so we substitute thisvalues  in the formula for the volume:

Rearranging the terms

which is option A.

because 1.2 isnt half of 6 duh