Question

Find the measure of the unlabeled angles

1) 129 degrees
2) 57 degrees
3) 51 degrees
4) 155 degrees

Answer 1

x=15 from the previous problem that I answered for you

Since (x+10) and that one blank angle are supplementary, they add up to 180 degrees.

x+10+y=180

15+10+y=180

25+y=180

y=155

Both unlabeled angles, due to the fact that they are vertical to each other, equal 155 degrees.

We also could figure this out by just taking 25 (the angle measurement of the labeled angles) and subtracting that from 180 without doing all of the fancy equation stuff.

Great question!! :)