Big Ideas Math Integrated I, 2016
BI
Big Ideas Math Integrated I, 2016 View details
1. Points, Lines, and Planes
Continue to next subchapter

Exercise 31 Page 385

Which plane does D, A, and B define?

Example Solution: C

Practice makes perfect

Before we are able to name a point that is coplanar with D, A, and B, we first have to find the plane that contains these three points.

The points D, A, and B are all on the top face of the cube. Extending the top face outwards in all directions will create the plane that contains D, A, and B.

The points C and I are also on the top face of the cube and are coplanar with D, A, and B. Since we are to only name one such point, we will arbitrarily choose C as our answer.