SOLUTION: Give proof that this is true: The angles that lie on the same base in a isosceles trapezium are equal

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Question 1080245: Give proof that this is true:
The angles that lie on the same base in a isosceles trapezium are equal
Answer by ikleyn(52925) About Me  (Show Source):
You can put this solution on YOUR website!
.
See the lesson
    - Trapezoids and their base angles
in this site.

It is proved there.


Also,  you have this free of charge online textbook on Geometry
    GEOMETRY - YOUR ONLINE TEXTBOOK
in this site.

The referred lessons are the part if this textbook under the topic "Properties of trapezoids".