A slice is made perpendicular to the base of a right rectangular prism, as shown in the figure.

What is the shape of the resulting two-dimensional cross- section?

Select from the drop-down menu to correctly complete the statement.

The cross-section is a___

The answer is rectangle.

To determine the shape of the resulting two-dimensional cross-section of a right rectangular prism, we need to understand how the slice intersects the prism.

In this case, the slice is made perpendicular to the base of the prism. A perpendicular slice means that the slice is cutting the prism at a right angle, or 90 degrees, to the base.

Since the slice is perpendicular to the base, the resulting cross-section will have the same shape as the base of the prism.

Given that the base of a right rectangular prism is a rectangle, the shape of the resulting two-dimensional cross-section will also be a rectangle.