Concept explainers
a.
To prove: That
a.
Explanation of Solution
Given information: Triangle DEF has vertices
Formula used: Distance between any two points having points
Proof:
Distance between any two points having points
Triangle DEF has vertices
Then,
The Pythagorean theorem tells us that the relationship in every triangle is
So,
b.
To prove: That
b.
Explanation of Solution
Given information: Triangle DEF has vertices
Formula used: For the points
Proof:
For the points
Triangle DEF has vertices
For the points
For the points
And
So,
Chapter 13 Solutions
McDougal Littell Jurgensen Geometry: Student Edition Geometry
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