Question: geometry...help

geometry...help

A guy wire attatched to the top of a tower makes an angle of 25 degrees with the tower. If the wire anchored to the ground 30 ft. from the tower, how long is the wire?

Date Posted: September 03, 2007 Tagged Under: geometry . mathematics . trigonometry . triangles . formulas
Rating:
n/a

Best way to see this is to draw a diagram.
it may seem tedious to draw out every problem, but it helps amazingly well.

Rating:
1.0

I guess you are supposed to add the two angles together??????????????

Rating:
10.0

This question is very similar to the previous question. Where ever the angle is , the opposite side is the opposite side, the adjacent side is adjacent to the angle, and the hypotenuse is the last side or longest side.

In this problem theta is 25 degrees, the opposite side is 30 feet and you need to solve for the hypotenuse or the wire length.

In this case you need to use sin (theta)=opp/hyp
sin (25) = 30/x
.4226=30/x
x(.4226)=30
x=70.9891 feet