A ladder placed 7 feet away from a wall,and makes 45 angle with ground.what is the length of the ladder?

Question

A ladder placed 7 feet away from a wall,and makes 45 angle with ground.what is the length of the ladder?

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Eliza 4 weeks 2021-12-30T21:48:25+00:00 1 Answer 0 views 0

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    2021-12-30T21:50:18+00:00

    Answer:

    L = 14/\sqrt2} OR 9.899

    Step-by-step explanation:

    cos(angle) = adjacent/ hypotenuse

    hypotenuse = length of ladder

    adjacent = 7 feet

    length of ladder = L

    1/L = cos(45)/7

    L = 7/cos(45)

    MAKE SURE CALCULATOR IS IN DEGREE MODE

    L = 7/(\sqrt{2}/2)

    L = 14/\sqrt{2}

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45:7+7-4:2-5:5*4+35:2 =? ( )