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TeachersFirst's Middle School Brain Twisters

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1. (20 points)
To decorate for the dance, Sue wants to put a string of lights across the gym floor, up the wall, and straight back down to the point at which she started. If the distance is exactly 15 feet across the floor and 20 feet up the wall, how long must the string of lights be?
60 feet
75 feet
55 feet
25 feet
45 feet

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