Concept explainers
To rewrite:Theorem 1-3as two statements, one describing existence and the other describing uniqueness.
Answer to Problem 2WE
There is at least one plane that consists of two intersecting lines.
The plane consisting two intersecting lines is unique.
Explanation of Solution
Given information:
If two lines intersect, then exactly one plane contains the line.
Calculation:
Theorem 1-2 states that: If two lines intersect, then exactly one plane contains the line.
The two required statements are as follows:
There is at least one plane that consists of two intersecting lines.
The plane consisting two intersecting lines is unique.
Chapter 1 Solutions
McDougal Littell Jurgensen Geometry: Student Edition Geometry
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