SOLUTION: Masonry: A 20ft ladder leans against a building at a 65 degree angle with the ground. Will it reach a window 17 ft above the ground?

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Question 111786: Masonry:
A 20ft ladder leans against a building at a 65 degree angle with the ground. Will it reach a window 17 ft above the ground?


Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
let x="height of ladder"

the ladder (20 ft) is the hypotenuse of a right triangle formed by the ladder, the building, and the ground

the height of the ladder (x) divided by the length of the ladder (20) is the sine of the 65° angle

so, x=(20)(sin65)