Chapter 1: Q11 (page 24)
State a postulate, or part of a postulate, that justifies your answer to each exercise.

Does lie in plane M?
Short Answer
Yes, lie in plane M.
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Chapter 1: Q11 (page 24)
State a postulate, or part of a postulate, that justifies your answer to each exercise.

Does lie in plane M?
Yes, lie in plane M.
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For the following figure, state whether the figure appears to be congruent or not.

How does the area of the outer square compare with the area of the inner square?

Name three planes that intersect at point B.
The plane that contains the top of the box can be called plane ABCD.
Are there any points besides C and G?

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.

Name three lines that intersect at point R.
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