## omarbirjas one year ago http://prntscr.com/7a5s9u

1. Nnesha

|dw:1432764356616:dw| what is angle C all triangles add up to 180 degree first find angle C

2. omarbirjas

107

3. Nnesha

nvm you don't have to

4. Nnesha

$\rm sin \rm \theta = \frac{ opposite }{ hypotenuse }~~~~ \cos \theta = \frac{ adjacent }{ hypotenuse } ~~\tan \theta = \frac{ opposite }{ adjacent }$ which one you should apply ?

5. omarbirjas

umm....idk since there is no hypotenues

6. Nnesha

to find AB you should know one angle and one side

7. Nnesha

ohhh i got your point lol

8. Nnesha

familiar with law of cosines and law of sines ?

9. omarbirjas

uggghhhh i hate that stuff....

10. omarbirjas

never really understood it....

11. Nnesha

bec given : two angle and one side so you have to use law of sines $\huge\rm \frac{ \sin A }{ a } = \frac{ \sin B }{ b }=\frac{ \sin C }{ c }$

12. Nnesha

|dw:1432765654408:dw| $\huge\rm \frac{ \sin B }{ b } = \frac{ \sin C }{ c}$ plug in value solve for c

13. Nnesha

yep right angle C is 107

14. omarbirjas

Yea so $\frac{ \sin 41 }{ a}=\frac{ \sin 32 }{ 9}$

15. Nnesha

you have to find AB so sin C over c

16. omarbirjas

sin 32/9 = sin 107/c

17. Nnesha

yep

18. omarbirjas

16.24

19. Nnesha

ye

20. omarbirjas

thank you berry machs

21. Nnesha

huh ? anyways np :-)