Cross-Sections

Circle the cross-section you would see when the gray cutting plane slices the object. Imagine that you are facing the cutting plane head-on, as if you were looking in a mirror. Make your choice based on the shapes of the possible answers, not their sizes.

The right rectangular prism has been sliced with a plane parallel to face LMON.

a. Label the vertices of the rectangle defined by the slice as RSTU.

b. What shape does the cross section create?

c. What are the dimensions of the slice?

The right rectangular prism has been sliced with a plane perpendicular to BCEH.

a. What shape does the cross section create?

b. What is the height of the resulting shape?