Isosceles Trapezoid

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.

If you know that angle BAD is 44 °, what is the measure of ADC?
 Answer 
angle ADC is 44° sicne base angles are congruent

ABC = 130, what other angle measures 130 degrees?

 Answer 
angle ADC is 44° since base angles are congruent

What is the value of j in the isoscles trapezoid below?
 Answer 
J= 5

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 

X= 9