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20
115
2000 divided by 50 = 40 laps
27
18
that depends on the hieght of the building.
30 feet. And you don't have to round it to the nearest foot. It's exactly 30 feet.
he should bud the ladder so it wouldn't be able to reach
20
It depends if you want the ladder to overhang or to be set under but I would say 2 feet or 2/3 of a meter
15 meters, or less, depending on the angle.
115
17
20
2000 divided by 50 = 40 laps
15.80 meters
This question is where you use the Pythagorean Theorem. Go to http://en.wikipdedia.org/ and search for Pythagorean Theoremif you don't already remember what it is, and good luck.