## anonymous 4 years ago OK I have two problems I'm stuck on can someone plz help me out and plz teach me how you solved it If b = 12, find c. If b = 3, find a.

1. anonymous

its a triangle btw

2. anonymous

feels like the question is missing something

3. anonymous

the Picture but i don't think you need it

4. anonymous

yes you need the pic ....its tells you the angles which tells the ratios of the sides to on another

5. anonymous

have you learned SOHCAHTOA? (theta$\sin \Theta=opp/hyp$ $\cos \Theta=adj/hyp$ $\tan \theta=opp/adj$

6. anonymous

|dw:1332188561682:dw|

7. anonymous

|dw:1332188855143:dw|

8. anonymous

for question a we know the adj and angle 60 degrees and we want to know hyp SohCahToa so we Cah $Cos \theta=adj/hyp$

9. anonymous

here adj = 12 , hyp = c and cos(60)

10. anonymous

i'd rather not tell you the answer but will help

11. aroub

OR did you take that: In semi equilateral triangle: The hypotenuse = 2 ( shorter leg) and the longer leg = square root of 3 times the shorter leg ?? * I think it's easier to use it in this problem.

12. anonymous

Kinda confused So we are just talking about the first one correct? haha im trying to put it all together in my head..

13. anonymous

ok yes we talking about the first one

14. anonymous

|dw:1332189439391:dw|

15. anonymous

ok that kinda makes more understand able and clear

16. anonymous
17. anonymous

can you work out c now?

18. anonymous

hmm SOH stands for Sine equals Opposite over Hypotenuse. B is the opposite side and C is the hypotenuse

19. anonymous

so its 12 over x 12 being B and x being C?

20. anonymous

|dw:1332189795874:dw|

21. anonymous

your getting the idea which is good ... you just mixed up the sides

22. anonymous

cant read what B is But on the diagram its the opposite side

23. anonymous

in the question 1 you said b =12 find c|dw:1332190095344:dw|

24. anonymous

Ugh im still confused what do I need to do to go about doing to find C? i thought I had to 12 over x

25. anonymous

cos (60)=12/x

26. anonymous

yes you right ... my bad you could also use |dw:1332190384723:dw|

27. anonymous

now can you draw in the opp , the adj and hyp

28. anonymous

Oh my god im confused :/ X can't = 6

29. anonymous

sin=opp/hyp sin 30 = 12/x 1/2=12/x .5x=12 x=24 .. sry your right i got it wrong

30. anonymous

Oh ok!! haha I thought it was 24 then you said 6 and i was TRIPPING out lmafo

31. anonymous

Ok for the second part im going to try that one can you check my answer? :)

32. anonymous

glad you get it ... certainly best of luck

33. anonymous

in this case its 3/x right?

34. anonymous

"TOA stands for Tangent equals Opposite over Adjacent."

35. anonymous

No that cant be right

36. anonymous

Trigonometry in geometry lol YEA!!! anyways the answer is 6.. found out after a lot of research on how do solve this problem @benice

37. anonymous

btw that was a Female dog to do.....lol

38. anonymous