Question

the diagram below is an oblique, or slanted, rectangular prism. not all angles shown are 90°. name two planes that intersect but arent necessarily perpendicular.

Explanation:

Step1: Identify planes in prism

In the rectangular - prism, planes can be formed by sets of vertices.

Step2: Select non - perpendicular intersecting planes

For example, plane $OPQR$ and plane $PQML$ intersect along line $PQ$, and they aren't necessarily perpendicular.

Answer:

Plane $OPQR$ and plane $PQML$ (answers may vary, other correct pairs like plane $OPQR$ and plane $ONKL$ etc. are also possible)