SOLUTION: how long is a guy wire that reaches from the top of a 15 ft pole to a point on the grond 10 feet from the bottom of the pole? find the legth to the nearest tenth of a foot.

Algebra ->  Trigonometry-basics -> SOLUTION: how long is a guy wire that reaches from the top of a 15 ft pole to a point on the grond 10 feet from the bottom of the pole? find the legth to the nearest tenth of a foot.      Log On


   

Question 318508: how long is a guy wire that reaches from the top of a 15 ft pole to a point on the grond 10 feet from the bottom of the pole? find the legth to the nearest tenth of a foot.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The height of the pole and the ground distance from the pole are legs in a right triangle.
The hypotenuse is the length of of the wire from the top of the pole to the ground.
Use the Pythagorean theorem.
H%5E2=10%5E2%2B15%5E2
H%5E2=100%2B225
H%5E2=325
H=sqrt%28325%29
H=5sqrt%2813%29 or approximately
H=18.0 ft