Question

Find the volume of the prism.

Answer 1

Answer:

B)

120 units ^3

Step-by-step explanation:

Volume=Area of triangular end times length.

Remember that the fromula from a triangular is multiplied by 1/2.

1/2 × 3 × 4 × 20= 120 units^3

is the result of your question.

Have a nice day☆

Answer 2

The answer is B.
**
The triangles on the two ends are congruent. So, to find the prism area, it is enough to take the area of one of the triangles and multiply it by the prism depth, which is 20 units.
Use the Pythagorean theorem to find the height of the triangle. 5^2 - 3^2 = 4^2, so the height is 4. Multiply half times height times base: 1/2 x 4 x 3 = 6. Multiply that by the depth, 20. 6x20=120. The answer is in cubic units, or units^3