Step-by-step explanation:
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Plane R and plane P intersect at AB.
Planes are when 3 points that are not on the same line can be used to describe a plane. Plane P is horizontal and Plane R is vertical and these 2 planes intersect at line AB. Intersecting is where these 2 planes meet, therefore line AB is common to both planes.
Answer:
2.5833333333333333333
Step-by-step explanation:
Answer:
8
Step-by-step explanation: