Which of the following figures has a triangle as its base?

B

Step-by-step explanation:

Cube has a square as its base.

Triangular prism has a triangle as its base.

Rectangle is not a 3-dimensional shape.

Rectangular prism has a rectangle as its base.

Therefore, the triangular prism is the only option that has a triangle as its base.

the dimensions are:

step-by-step explanation:

we want to find the dimensions of a rectangular box with volume of

we factor to obtain;

we rewrite the rightmost factor to obtain;

recall that:

we apply difference of two squares formula to obtain;

hence the dimensions are