An illustration shows a triangle with sides measuring 21, 17, and 10. A perpendicular line, from the side measuring 21 to the opposite angle, measures 8. A right angle symbol is shown to the left of the perpendicular line.

A prism and a pyramid both have this triangular base. If both shapes have the same height and the volume of the prism is 1,092 cubic units, what is the volume of the pyramid?
(1 point)
Responses

1,092 cubic units
1,092 cubic units
728 cubic units
728 cubic units
3,276 cubic units
3,276 cubic units
364 cubic units

1 answer

To find the volume of the pyramid with the same triangular base and height as the prism, we need to use the formulas for the volumes of these shapes.

The volume \( V \) of a prism is calculated using the formula:

\[ V_{\text{prism}} = \text{Base Area} \times \text{Height} \]

The volume \( V \) of a pyramid is calculated using the formula:

\[ V_{\text{pyramid}} = \frac{1}{3} \times \text{Base Area} \times \text{Height} \]

Since the prism and pyramid have the same base area and height, we can determine the volume of the pyramid in relation to the volume of the prism.

Given that the volume of the prism is 1,092 cubic units, we can set:

\[ V_{\text{prism}} = \text{Base Area} \times \text{Height} = 1,092 \]

Now, to find the volume of the pyramid:

\[ V_{\text{pyramid}} = \frac{1}{3} \times \text{Base Area} \times \text{Height} = \frac{1}{3} \times V_{\text{prism}} \]

Substituting the volume of the prism:

\[ V_{\text{pyramid}} = \frac{1}{3} \times 1,092 = 364 \]

Therefore, the volume of the pyramid is:

\[ \boxed{364 \text{ cubic units}} \]