Concept explainers
Prove that
Answer to Problem 9PSB
Explanation of Solution
Given information:
Given:
Calculation
Consider the given figure,
It is given that,
The legs of isosceles
The angles opposite to congruent sides are congruent,
We know that parallel lines determine a plane so,
If a plane intersects two lines the lines are parallel.
The two angle s of a triangle are congruent opposite sides are congruent.
If a triangle has two congruent sides then it is isosceles.
Hence, proved
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- Elementary Geometry For College Students, 7eGeometryISBN:9781337614085Author:Alexander, Daniel C.; Koeberlein, Geralyn M.Publisher:Cengage,Elementary Geometry for College StudentsGeometryISBN:9781285195698Author:Daniel C. Alexander, Geralyn M. KoeberleinPublisher:Cengage Learning