What is the approximate volume of a cone-shaped party hat a base whose circumference is 25.12 inches and height is 8 inches?
a. 401.92 cubic inches
b. 33.49 cubic inches
c. 133.97 cubic inches
d. 535.89 cubic inches

Question

anonymous · Answer

Circumference = 2*pi*r
Volume of Cone = 1/3 * pi * r^2

You're given the circumference; use it to find the radius. Plug that back into the volume formula for your answer.

amistre64 · Answer

formula for any conic shape is:

(1/3)(Area of Base)(height)

anonymous · Answer

so r=3.99

V=133,90 cubic inches ( C )

anonymous · Answer

Sorry, totally forgot to add *h to the volume formula!