Asked by pam

a 13 ft ladder is placed against a vertical wall of a building, with the bottom of the ladder stand on level ground 5ft from the base of the building. how high up the wall does the ladder reach.

Answers

Answered by Ms. Sue
The ladder is the hypotenuse of a right triangle.

a^2 + b^2 = c^2

5^2 + b^2 = 13^2

25 + b^2 = 169

b^2 = 144

b = 12

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