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roxitscramely roxitscramely
  • 22-02-2017
  • Mathematics
Answered

A ladder leaning against a house makes an angle of 30° with the ground. the foot of the ladder is 7 feet from the foot of the house. how long is the ladder?

Verified Answer :

Anonymous Anonymous
  • 26-02-2017


Let L be the length of the ladder. The ladder and the side of the house form a right triangle with the ladder being the hypotenuse and the house wall being the side opposite the 30 degree angle. We have a theorem that says that in a right triangle the side opposite a 30 degree angle is half the hypotenuse, in this case L/2. 

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