Asked by Thamara

If more than one plane contains three points A,B, and C, what must be true?
A)AB is perpendicular to BC
B)A,B, and C are noncollinear
C)A,B, and C are collinear
D)AB=BC
Answered by Damon
Just use your right hand for one plane and your left hand for a second plane.
Intersect our flat right hand with your flat right hand.
They meet in a line.
All points that are in both planes lie on that line.
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