The angles circled in red below are same side exterior. This means that the sum of them is 180 degrees. You can make a formula like so that you will solve for x...
98 + x = 180
98 - 98 + x = 180 - 98
0 + x = 82
x = 82
Another way to solve:
The angles circled in pink below are opposite side exterior. This means that they must equal each other...
82 = x
x = 82
Hope this helped!
~Just a girl in love with Shawn Mendes
