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Geometry 11 Online
OpenStudy (lm08):

A railroad crossing sign is a circle with a diameter of 30 in. The manufacturer makes 6 railroad crossing signs from the sheet of aluminum by arranging the signs as shown. About ____ in2 of aluminum is left over after the signs have been made. (Enter only the number rounded to the nearest square inch.)

OpenStudy (tkhunny):

You'll have to demonstrate what is shown. Also, show YOUR best work.

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