Wednesday

January 28, 2015

January 28, 2015

Posted by **Anonymous** on Tuesday, February 5, 2013 at 8:33am.

- trig -
**Reiny**, Tuesday, February 5, 2013 at 9:21amFirst observation point A

second observation point B

top of tower P

bottom of tower Q

In triangle ABP,

angle A = 70 --- given

angle PBA = 95 --- exterior angle to 85°

angle APB = 15°

AB = 55m --- given

by the sine law

BP/sin70 = 55/sin15

BP = 55sin70/sin15

in triangle BPQ

PQ=200

angle PBQ = 85

BP = 55sin70/sin15

sinQ/BP= sin85/200

sinQ = BPsin85/200

= (55sin70/sin15)(sin85)/200 = .9946..

angle Q = 84.0658°

or appr 84°

**Answer this Question**

**Related Questions**

Trig - From a point P on level ground, the angle of elevation of the top of a ...

math - Can someone please take a look at these results and make sure they're ...

trigonometry - Mickey determines that the angle of elevation from his position ...

Trig - The angle of elevation from a point on the ground to the top of a tower ...

Math - If an observer stands at a certain point in the same horizontal plane as ...

trig - On an inclined road, which makes an angle of 25 degrees with the ...

Math - 1. A rangers tower is located 44m from a tall tree. From the top of the ...

calculus - I need help with the following problem: From a point 50 meters from ...

trig - Two office towers are 43m apart. From the top of the shorter tower, the ...

Math - From an observation tower that overlooks a runway, the angles of ...