Chapter 1: Q11-20 (page 7)
The plane that contains the top of the box can be called plane ABCD.
Short Answer
The planes ABFE and DCGH are the required planes.
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Chapter 1: Q11-20 (page 7)
The plane that contains the top of the box can be called plane ABCD.
The planes ABFE and DCGH are the required planes.
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For the following coordinates of two points on a number line, state the distance between the points and .
A plane can be named by three or more non-collinear points it contains. In chapter 12 you will study pyramids like the one shown at the right below.

Of the five planes containing sides of the pyramid, are there any that do not intersect?
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For the following coordinates of two points on a number line, state the distance between the points 7 and .
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