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Mathematics 7 Online
OpenStudy (hannahc234):

A 12-ft-by-15-ft rectangular swimming pool has a 3-ft-wide no-slip surface around it. What is the outer perimeter of the no-slip surface? 78 ft 78 ft2 198 ft 198 ft2

OpenStudy (radar):

|dw:1473449849904:dw| Some times a picture will help.

OpenStudy (radar):

|dw:1473450055419:dw|What are the dimensions of A and B?

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