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linse025
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Homework Statement
I need some help with this, actually quite a bit.
Two electric towers are 270 feet apart. The tower on the left is 75 feet tall the one on the right is 108 feet tall. A wire is strung between them that is tied to the ground. Where should the wire be placed so that it is the minimum length?
Homework Equations
The towers and the wire form two right triangles, so Pythagorean theorum must be used.
The Attempt at a Solution
http://img201.imageshack.us/img201/2294/towersml7.th.jpg [Broken]
What I have come up with so far
total length of wire between tower A and the ground is X
total length of wire between tower B and the ground is 270-X
Total length of wire is the sum of the two wires
The formula I have so far is
http://img408.imageshack.us/img408/8162/equationhy8.th.jpg [Broken]
beyond ths step I have no idea what I should do
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