Question

Identify the diameter of the circular base created by folding the figure into a right cone.

Answer 1

64 in

Explanation:

Because the radius of the circle is 32 in,

the diameter is two times the radius, or 32 * 2 = 64 in

Answer 2

• A. 48 in

Explanation:

3/4 of the circumference of existing circle becomes the full circle of the base of the cone.

Circumference of the base:

• C = 3/4*2π*32 = 48 π

Find its diameter:

• C = πd ⇒ d = C/π
• d = 48π/π = 48 in