Answer:
X= -5/3 Y= 10/3
Let me know if you need the work to be shown
we know that
In the <u>isosceles trapezoid</u> of the figure, the angles on either side of the bases are the same size/measure (congruent), and adjacent angles (next to each other) along the sides are supplementary.
so
m∠A=m∠B=3x
m∠D=m∠C=9x
m∠A+m∠D=
Substitute
therefore
<u>the answer is</u>
the value of x is equal to
All you have to do is go to the location of the number and go over the other location of the other number