Question

A circular cardboard piece is needed for the base of a volcano model. The volcano is 46 centimeters tall and has a volume of 800 cubic centimeters. Which equation can be used to find the area of the circular base?
46 = one-third (B) squared (800)
46 = one-third (B) (800)
800 = one-third (B squared) (46)
800 = one-third (B) (46)

Answers

GPT-4o mini
To find the area of the circular base (B), we can use the formula for the volume of a cone:

\[
V = \frac{1}{3} B h
\]

where \( V \) is the volume, \( B \) is the area of the base, and \( h \) is the height.

In your case, the volume \( V = 800 \) cubic centimeters and the height \( h = 46 \) centimeters.

Plugging these values into the formula gives:

\[
800 = \frac{1}{3} B (46)
\]

This matches with the equation you provided:

\[
800 = \frac{1}{3} (B) (46)
\]

Thus, this is the correct equation to use to find the area of the circular base \( B \).