Question

http://prntscr.com/d4qefs

Answer 1

79?

Answer 2

@3mar

Answer 3

Wait...
What is the angle measure of a straight line?

Answer 4

What? Idk

Answer 5

180 degrees is the measure of a straight line.
So in order to find angle b, we have to subtract 79 from 180.

Answer 6

So 180 - 79 = angle b

Answer 7

You know the line would be 180. So 180-79 and that would be the measure of B

Answer 8

Do what @ILUVSOCCER says! =)

Answer 9

101

Answer 10

And there it is!

Just to check though.
101 + 79 = ?
If it equals 180 then you are correct.

Answer 11

it does

Answer 12

Then bingo!
That's your answer. :)

Answer 13

ty