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Isosceles Trapezoid

An trapezoid with  congruent Legs

The defining trait of this special type of trapezoid is that the two non-parallel sides (XW and YZ below) are congruent.

Base Angles


The base angles of an isosceles trapezoid are congruent.
Base Angles of Isosceles trapezoid picture
If you know that angle BAD is 44 °, what is the measure of ADC?
 Answer 

Base angles of isosceles trapezoid problem
ABC = 130, what other angle measures 130 degrees?

 Answer 

Base angles diagram and problem
What is the value of j in the isoscles trapezoid below?
 Answer 

Base Angles practice Problem
Diagonals of Isosceles Trapezoid
Diagonals of Isosceles Trapezoid
The diagonals of an isoscels trapezoid are congruent. What is the value of x below? (use your knowledge about diagonals!)
 Answer 


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