Posted by **Jenny Lynn** on Monday, November 26, 2007 at 6:42pm.

Hello! I need assistance in solving for a side for a right triangle in trigonometry. Can anyone give me the easiest way/formula how to go about solving it?

Thank you!

- Math -
**Michael**, Monday, November 26, 2007 at 6:48pm
Use SOH CAH TOA.

sinx = opposite/hypotenuse

cosx = adjacent/hypotenuse

tanx = opposite/adjacent

- Math -
**Jenny Lynn**, Monday, November 26, 2007 at 8:19pm
I've come across that before..

But the main objective I have difficulty with is when you use the proportion (ex.)

angle decimal (after you look it up on the sin, cos, or tan table)/1 and object you are looking for/adjacent

What do you do afterward? Or is that it?

- Math -
**Nico**, Sunday, January 27, 2008 at 11:21pm
If you are looking for the hypotenuse, then the equation that you should use is z=SQRT(x^2 + y^2), where both x and y are shorter than the z and ae adjacent to the right angly.

However, if you are looking for one of the legs(either one of the shorter sides), then you must use y = SQRT(z^2 - x^2), where the z is the hypotenuse and x is the other leg.

## Answer this Question

## Related Questions

- algebra attn Reiny - Thanks for your help with the solving of the three ...
- math please help - In a triangle, the lengths of the sides are 3,7,and 8. If the...
- Math - Can someone correct it Evaluate the following expressions numbers 3-4 3...
- Math...Geometry - Hello, Can someone please tell me if I worked this out correct...
- MATH - Solving by graphing DQ 1 Solving by substitution Solving by elimination ...
- Math - Hello everybody! May I ask you a big favor? I need help. What I have is: ...
- MATH - can we sketch a triangle with 1:2:3 side-length ratio???? Intuitively, no...
- Math, Calculus - The questions says it has 2 solutions. It wants me to find what...
- calculus-domain - Hello, I would greatly appreciate your input. I just need some...
- Math - Which of the triangles described in the table is a right triangle. Table ...

More Related Questions