Big Ideas Math Integrated I, 2016
BI
Big Ideas Math Integrated I, 2016 View details
1. Points, Lines, and Planes
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Exercise 5 Page 384

The two planes in the diagram are named S and T.

Plane S

Practice makes perfect

Consider the given diagram.

Notice that the points A, B, and C are all contained in the plane in the top of the diagram.

We can identify this plane as plane S. This is shown in the top, right-hand corner of the diagram.