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anonymous
 5 years ago
A 22' tall building has a ladder leaning on it. The ladder forms a 51° angle with the ground. How long is the ladder?
Round your answer to the nearest integer. ________ feet
anonymous
 5 years ago
A 22' tall building has a ladder leaning on it. The ladder forms a 51° angle with the ground. How long is the ladder? Round your answer to the nearest integer. ________ feet

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0For this problem you need to use trigonometry! The opposite side is 22 and the angle is 51. The relationship you want is: sin(x) = opposite/hypotenuse sin(51) = 22/x 22/sin(51) = x 28 ft = x (well really about 28.3087 ft)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0But when I put 21(sin) is like a decimal?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0sin(51) is about .77730871 ish

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Let h = height of building and L = length of the ladder. L = h Csc[51 Degrees] = 22 Csc[(51/180)*Pi] = 28.3087 or 28 rounded to nearest foot.
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