## anonymous one year ago Help me start this out please. I need to find the measure of x. Will medal as I always do :)

1. anonymous

it is a right triangle, such as this one. On side B is 12. On side C is 12. X is between the two.

2. anonymous

On side c is 13 My bad

3. anonymous

@Luigi0210 May you be able to help me? :)

4. Luigi0210

So it's this? |dw:1433441809145:dw|

5. anonymous

Yes!! Without the a

6. Luigi0210

Okayyyy, if you know your triangles, you should know that 5-12-13 is a special triangle like 3-4-5. So we can just replace a with 5. In order to find x, we could do either the sine, cosine, or tangent, your choice since we have all the sides.

7. anonymous

Im going to go with tan

8. Luigi0210

Alright! So tangent is: $$\large \tan\theta=\frac{opposite}{adjacent}$$ So for your triangle: |dw:1433442229985:dw| So $$\large \tan x=\frac{5}{12}$$ Make sense?

9. Luigi0210

In order to get the angle for x, just take the inverse tangent: $$\large x=\tan^{-1}(5/12)$$ Plug that into a calculator and you'll get the angle degree of x :)

10. anonymous

im sorry i didnt respond fast enough but thank you for helping me!

11. anonymous

22.61 or rounded 22.62 Thank you <3 I got the answer :D

12. Luigi0210

It's alright, and yes, nice job :) You're welcome!