## computergeek123 3 years ago @DoomDude

1. computergeek123

2. DoomDude

20Sin(70)= 18.79385

3. DoomDude

wait... that doesn't seem right

4. DoomDude

testingtutor, could you double check that?

5. computergeek123

20 cosec 70° ?

6. DoomDude

ya, i think that is it

7. DoomDude

and turing...

8. zepp

The length 'opposite' is 20, what we are looking for is the hypotenuse

9. DoomDude

I was not trying to break the CoC, I thought I had explained it....

10. zepp

And we know that's a sine. $\sin70 = \frac{20}{Hypotenuse}$

11. zepp

Hence, $Hypotenuse = \frac{20}{sin70}$

12. TuringTest

|dw:1335992360468:dw|$\tan\theta=\frac ab\implies b=\frac a{\tan\theta}$

13. computergeek123

14. TuringTest

and @DoomDude a one-line answer is insufficient here

15. DoomDude

so, it has to be more than one line? LAST problem she asked I explaind why you would use sin and not cos ect.. gave her this link http://www.mathsisfun.com/sine-cosine-tangent.html and then solved it! She already had that info for this one...

16. computergeek123

I chose A, is it wrong

17. TuringTest

^so that is why you need top check the askers understanding before providing the answer

18. TuringTest

to check*

19. DoomDude

ok... will do next time, i was just a bit shocked that I was breaking a rule...

20. TuringTest

it's okay, just please try a little harder to make it so $$they$$ give the correct answer, not you

21. DoomDude

ok...