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 6 Page 384

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

Plane T

Practice makes perfect

Consider the given diagram.

Notice that the points A, D, and E are all contained in the plane in the bottom of the diagram.

We can identify this plane as plane T. This is shown in the bottom, left-hand corner of the diagram.