Question

)) Two window washers, Hector and Michael, lean a ladder against the side of a building so

Answer 1

Answer: Seems like it would depend on your base. Can you pull the ladder away from the window and let it go and it drops back to the original position? I would prefer an extension ladder with a set off just below the frame so that I can reach both panes without the ladder blocking me. If the extension ladder won’t reach I would use the WFP (and might use that anyway).

Answer 2

Answer:  15 ft

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Work Shown:

Refer to the diagram below.

a = 12 and b = 9 are the legs of the right triangle

c = unknown hypotenuse, which is the length of the ladder.

Use the Pythagorean theorem to solve for c

a^2+b^2 = c^2

12^2+9^2 = c^2

144+81 = c^2

225 = c^2

c^2 = 225

c = sqrt(225)

c = 15

The ladder is 15 feet long.