The volume of a cone is cubic feet. Its height is 12 feet. Ashlyn is finding the area of the base of the cone. Her work is shown below.

Step-by-step explanation:

The volume of a cone of height h and a circular base of radius r is given by . Note that is the area of the base, therefore, if we want to find the area of the base we must multiply the equation by 3 and divide by h.  Hence

In this case, h=12. Given a value of V, we can find the area of the base

r and t.

both are 64 degrees.

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°