Question

Please help me! I will metal!
What is the length of segment AB? Round your answer to the nearest tenth.
A. 6.8
B. 8.7
C. 14.0
D. 17.9

Answer 1

I have absolutely no clue. O.O

Answer 2

There is a formula for this...

Answer 3

Transverse angles I think?

Answer 4

Anyway the angle would be 38.

Answer 5

Thank you.
What would the fromula be?

Answer 6

http://www.mathsisfun.com/geometry/alternate-interior-angles.html

Answer 7

It's a theorem, excuse me.

Answer 8

Oh, okay. I'll just look at that for a second.

Answer 9

Okay, I'm confused.. :(

Answer 10

Have you learned the Law of Cosines yet?