SOLUTION: a tv tower is 20.5m high.Wire braces attached 4.5m from the top of the tower are 8m aways from the base.Find the length of each wire brace.illustrate.

Question 216502: a tv tower is 20.5m high.Wire braces attached 4.5m from the top of the tower are 8m aways from the base.Find the length of each wire brace.illustrate.
Answer by tutor_paul(519) (Show Source): You can put this solution on YOUR website!
The tower and the distance along the ground from base of tower to brace are the legs of a right triangle, and the length of the brace is the hypotenuse. You can thus use the pythagorean theorem to solve this. Let x be the length of the brace.

Take the square root of both sides; consider only the positive result:

Simplify...

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Good Luck,
tutor_paul@yahoo.com
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