Question

I used sin, but don't know which one is the "X" part.
I think I set it up wrong!
@jim_thompson5910

Answer 1

I think I set it up wrong!

Answer 2

you'll use tangent for each because tan(angle) = opp/adj

Answer 3

or you can use the special 30-60-90 triangle and the 45-45-90 triangle

Answer 4

tan(45) or tan(30) ?

Answer 5

how long is AP

Answer 6

It's asking for AB .

Answer 7

yes you'll need AP and PB to figure out AB

Answer 8

AB = AP + PB

Answer 9

x= 2.309

Answer 10

check out this page

http://www.regentsprep.org/regents/math/algtrig/att2/ltri30.htm

Answer 11

x= 9