PLEASE solve out for me!
A radio station is going to constuct a 9-foot tower for a new antenna. The tower willbe supported by threee= cables, each attached to the top of the tower and to points on the roof of the building that are 12 feet from the base of the tower. Find the total lengths of the three cables,
2007-06-07 12:37:03 · 4 answers · asked by Taylor 1 in Education & Reference ➔ Homework Help
9^2+12^2=C^2
81+144
225=C^2
C=15
15
15x3
45
2007-06-07 12:41:39 · answer #1 · answered by jls10 3 · 0⤊ 0⤋
use pytahagrian therom a squared plus b squared =csquared. the hypotenuse is always c and the otehr 2 legs are a and b tne cable is the hypotonuse so 9^2+12^2=c^2
so 81+144=c^2 225=c^2 c=15 so the anwser is 15
2007-06-07 12:44:23 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Length of cable = x
Use the Pythagorean Theorem to solve
x² = 12² + 9²
x² = 225
x= 15 ft (for one cable)
So three cables would be
15 * 3 = 45 ft
.
2007-06-07 12:46:04 · answer #3 · answered by Robert L 7 · 0⤊ 0⤋
the person that found 15 is right, but that is for one cable.
So 45 feet is the total length of the three cables
2007-06-07 12:44:15 · answer #4 · answered by HockeyChick 3 · 0⤊ 0⤋