## highschoolmom2010 Group Title you see a rock climber on a cliff at a 32 degree angle. your eve level is 6 feet from the ground and you stand 1000 feet from the base of the cliff. what is the approx. height of the rock climber from the ground? 11 months ago 11 months ago

1. highschoolmom2010 Group Title

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2. ankit042 Group Title

You know how to write sin for a triangle?

3. highschoolmom2010 Group Title

yes

4. highschoolmom2010 Group Title

$\sin \frac{ opp }{ hyp }$

5. ankit042 Group Title

Yes try using this here we know sin30=1/2

6. highschoolmom2010 Group Title

where did you get that from

7. ankit042 Group Title

sin30 is a standard angle...It is good to know value of sin 0,30,45,60,90 otherwise you can always use calculator :P

8. highschoolmom2010 Group Title

oh yea ok

9. ankit042 Group Title

Now can you proceed from here?

10. highschoolmom2010 Group Title

eh no not really

11. ankit042 Group Title

where are you stuck?

12. highschoolmom2010 Group Title

basically the begining this confused me bc i was given the adjacent side to the angle

13. ankit042 Group Title

Sorry I couldn't understand you...can you explain more

14. timo86m Group Title

you use cos not sin if you are given adjecent. But better yet this problem requires tan :P

15. timo86m Group Title

tan because you are given the adjecent. And wanna know the oppossite side.

16. timo86m Group Title

17. highschoolmom2010 Group Title

so i need to use tan

18. timo86m Group Title

Yup :D it is the simplest trig ID that has both opp and adj in it.

19. timo86m Group Title

tan(30)=opp/adj=x/1000 tan(30)=x/1000 solve for x can you do that?

20. highschoolmom2010 Group Title

$1000*\tan 30=\frac{ x }{ 1000 }*1000$ $1000( \tan 30)=x$ but the angle is 32 degrees

21. timo86m Group Title

1000*tan 32 =x is right so far :D what you do now is evaluate tan 32 in degree mode SOrry at typo

22. timo86m Group Title

i must have look at that other guy who say sin 30 lol.

23. highschoolmom2010 Group Title

1000 tan (32) gave me a crazy answer

24. timo86m Group Title

1000*(tan 32) =x ok so we got this far all we do is use our calculator making sure we in degree mode not radian mode tan32=0.62486935190932750978051082794943665831087020284270496 so we jsut plug that in 1000*.6248=624.8 ft sounds believeable. ooh plus 6 feet for the guys height at eye level 624.8+6

25. highschoolmom2010 Group Title

so rock climber is approx. 630.8' from the ground

26. timo86m Group Title

if that is one of your answer choices :D use the one that is closest to our answer. oh and i would go with that lol.

27. ankit042 Group Title

28. highschoolmom2010 Group Title