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Math Help - Insufficient information?

  1. #1
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    Insufficient information?

    Its a word problem at grade 11 level, which is probably really easy to most of you guys (and girls), but I can't find the angles VTR and VRT, which I am assuming are needed to complete this question. Well, here is is:

    Two fire towers are located 100km apart on high hills T and R. The bearing from T to R is north east. A fire F is observed from tower T at N10 E and from tower R at N75 W. The town of Pretty Valley, at point V, is on a bearing of N25 E from tower T and S70 W from R. The observers report the wind is blowing the fire directly toward Pretty Valley at a rate of 8km/h. How many hours do the officials have to evacuate the town?

    Thanks in advance!
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  2. #2
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    Quote Originally Posted by dunafrothint View Post
    Its a word problem at grade 11 level, which is probably really easy to most of you guys (and girls), but I can't find the angles VTR and VRT, which I am assuming are needed to complete this question. Well, here is is:

    Two fire towers are located 100km apart on high hills T and R. The bearing from T to R is north east. A fire F is observed from tower T at N10 E and from tower R at N75 W. The town of Pretty Valley, at point V, is on a bearing of N25 E from tower T and S70 W from R. The observers report the wind is blowing the fire directly toward Pretty Valley at a rate of 8km/h. How many hours do the officials have to evacuate the town?

    Thanks in advance!
    Have a look here: http://www.mathhelpforum.com/math-he...ht=fire+towers
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  3. #3
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    Oh! So, when it says NE, it means exactly NE and not just a random degree in that direction. Haha. Wow. Okay. Thanks! That would definitely be what I was missing.
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