Question

How do I find x on a triangle with an angle and a side that are known?

Answer 1

.

Answer 2

I believe that I understand part of the process but when I get to a certain point I get lost. :/

Answer 3

Wait a sec

Answer 4

\[\sin(60)=opposite/hypotenuse\]

Answer 5

I have a link that will help you: http://www.mathsisfun.com/algebra/trig-solving-asa-triangles.html

Answer 6

Is that what I need to use?

Answer 7

Yes ^_^

Answer 8

So when I plug my information into the equation it looks like \[\sin(60)=x/9\] . Correct?

Answer 9

here is your ratio for a 60 deg triangle

Answer 10

The equation then starts to look like: sin(60)=x/9

Answer 11

x is 1/2 of 9

Answer 12

I do not understand. How did you come to that conclusion?

Answer 13

@ehuman

Answer 14

When u resolve a number u can resolve it in the horizontal direction (x-axis) and vertical direction (y-axis)

Answer 15

by memorizing the most common triangle ratios