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McGraw Hill Integrated II, 2012

MH

McGraw Hill Integrated II, 2012 View details

6. Surface Areas and Volumes of Spheres

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Exercise 60 Page 855

A plane is a flat surface made up of points that extends infinitely in all directions.

4

Practice makes perfect

Let's begin with reviewing the definition of a plane. It is a flat surface made up of points that extends infinitely in all directions. A plane is named by any three points that it contains.

We can see that this figure has 4 flat surfaces. ABC, ABD, BCD, ACD

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Exercises p.852-855