## gopeder Group Title 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. 2 years ago 2 years ago

1. gopeder Group Title

its a triangle btw

2. benice Group Title

feels like the question is missing something

3. gopeder Group Title

the Picture but i don't think you need it

4. benice Group Title

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

5. benice Group Title

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

6. benice Group Title

|dw:1332188561682:dw|

7. benice Group Title

|dw:1332188855143:dw|

8. benice Group Title

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. benice Group Title

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

10. benice Group Title

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

11. aroub Group Title

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. gopeder Group Title

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

13. benice Group Title

ok yes we talking about the first one

14. benice Group Title

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15. gopeder Group Title

ok that kinda makes more understand able and clear

16. benice Group Title
17. benice Group Title

can you work out c now?

18. gopeder Group Title

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

19. gopeder Group Title

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

20. benice Group Title

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21. benice Group Title

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

22. gopeder Group Title

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

23. benice Group Title

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

24. gopeder Group Title

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. benice Group Title

cos (60)=12/x

26. benice Group Title

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

27. benice Group Title

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

28. gopeder Group Title

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

29. benice Group Title

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

30. gopeder Group Title

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

31. gopeder Group Title

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

32. benice Group Title

glad you get it ... certainly best of luck

33. gopeder Group Title

in this case its 3/x right?

34. gopeder Group Title

"TOA stands for Tangent equals Opposite over Adjacent."

35. gopeder Group Title

No that cant be right

36. gopeder Group Title

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. gopeder Group Title

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

38. benice Group Title