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• Answer the following:

A. Given the cube at the right with vertices A, B, C, D, E, F, G and H.

1. How many segments are there in all?

• There are twelve pairs of segments. Thus, twenty-four segments in total.

2. Give a segment that contains Point F.

• Line segments FG, F'B, FE, G'F, B'F and FE.

3. What angle is formed by ?

• Acute angle is formed by the given angle.

4-5. What are the planes that contain BC?

• The planes that contain line BC are plane BCG'F and plane BCDA.