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the top of an electric pole is s supported by a wire of 26 ft long on the ground level. how far is tightened spot from the foot of the pole if its height is 24 ft?​

User Kamal Lama
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1 Answer

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23 votes

Answer:

The tightened spot is 10 feet away from the foot of the pole.

Explanation:

1. Draw the diagram. Notice that the shape of the electric pole and its supporting wire creates a right triangle.

2. We know 2 side lengths already (26ft, 24ft), and we need to find 1 more side length. Therefore, to find the 3rd side length of a right-triangle, utilize Pythagoras' Theorem.

What is the Pythagoras' Theorem?


  1. (C)^2 = (A)^2 + (B)^2
  2. An equation to find a 3rd side length
  3. C = hypotenuse
  4. A = one leg
  5. B = another leg

3. Substitute the values of the side lengths into the equation, and solve for the unknown side length.

Let B= the distance from the tightened spot to the foot of the pole.


(C)^2 = (A)^2 + (B)^2


26^2 = 24^2 + B^2


676 = 576 + B^2


100 = B^2


√(100) = √((B)^2)


10 = B

∴ The tightened spot is 10 feet away from the foot of the pole.

Diagram:

the top of an electric pole is s supported by a wire of 26 ft long on the ground level-example-1
User Scholle
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