Question

the diagram below is a right rectangular prism. all the angles shown measure 90°. name planes that are perpendicular. answer attempt 1 out of 2 feg and gcd

Explanation:

Step1: Recall perpendicular - planes property

In a right - rectangular prism, adjacent faces are perpendicular.

Step2: Identify adjacent planes

Planes FEG and GCD share an edge GC. Since it is a right - rectangular prism, the angle between these two planes is 90°. There are other pairs as well such as plane FEG and plane FEI, plane GCD and plane CDH etc. But FEG and GCD is a valid pair.

Answer:

Planes FEG and GCD are perpendicular.