Question

The plane that contains the top of the box can be called plane ABCD.

Name the intersection of planes ABFE and BCGF.

Short answer

The line that formed with the intersection of planes is represented by .

Step-by-step solution

Step 1. Observe the figure

The figure is made up of the intersection of 6 planes and each intersection forms a line.

Step 2. Observe the provided two planes

Both the planes ABFE and BCGF forms only one line with their intersection.

Step 3. Make conclusion from the observation

As the observation represents the line so it is the required line.