math

a 15 foot ladder is leaning against a house. The base of the ladder is 4 feet from the house. to the nearest tenth of a foot, how high does the top of the ladder reach?

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asked by mer
  1. The ladder and the ground form a right triangle. Use the Pythagorean Theorem to find the other leg of the triangle.

    a^2 + b^2 = c^2

    a^2 + 4^2 = 15^2

    a^2 + 16 = 225

    a^2 = 209

    a = 14.5 feet

  2. okay thanks. I appreciate it. (:

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    posted by mer
  3. You're welcome.

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