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kolezko [41]
3 years ago
8

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

Mathematics
1 answer:
elixir [45]3 years ago
5 0

Answer:

L = 14/\sqrt2} <u>OR</u> 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)

<u><em>MAKE SURE CALCULATOR IS IN DEGREE MODE</em></u>

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

L = 14/\sqrt{2}

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