geometry
posted by Patty S .
You need to lay communications cable around the perimeter of three offices, each 8' by 10'. How much cable do you need?

Does the cable need to surround each office?
3(2*8 + 2*10) = ?
Or aroundall the offices?
2(3*8 + 10) = ?
or
2(3*10 + 8) = ?
depending on the arrangement of the offices.
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