Answer
x=20
y=50
How I Did This
Any time there are two angles next to each other in a straight line, they are supplementary, meaning they add up to 180.
Also, all triangles' angles add up to 180.
With this information, we can solve for x and y.
First we find the unknown side in the first triangle
180=91-?
-91 -91
89=?
Now we can solve for x.
Combine like terms
71+89+x=180
Subtract 160 from both sides
160+x=180
-160 -160
x=20
Now, we can solve for y.
91+31+x=180
Combine like terms.
130+x=180
Subtract 130 from both sides.
130+x=180
-130 -130
x=50
Hope this helps! If you need more information, don't hesitate to ask!
