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10 February, 17:44

The recommended angle for a firefighting ladder is 75°. When a 110-foot ladder

is put up against a building at this angle, the base of the ladder is about 28

feet from the building. The base of the ladder is 8 feet above the ground. How

high on the building will the ladder reach?

Round your answer to the nearest tenth.

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Answers (1)
  1. 10 February, 20:44
    0
    Answer:106.38 feet

    Step-by-step explanation:

    This can be solved by using pythagoras theorem

    c=110 feet

    b=28 feet

    a=?

    a=sqrt (110^2-28^2)

    =sqrt (12100-784)

    =sqrt (11316)

    =106.3766 feet

    =106.38
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