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4 December, 23:14

A 10 ft. ladder leans against a wall so the base of the ladder is 4 ft. from the wall. how high up on the wall will the ladder reach?

A. 9.17

B. 84

C. 10.4

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Answers (1)
  1. 5 December, 02:16
    0
    Using Pythagoras theorem:-

    10^2 = 4^2 + h^2

    h^2 = 100 - 16 = 84

    h = sqrt 84 = 9.17 ft answer
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