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You are a teacher, your classroom has 3 bulleting board that measure 6 feet by 6 feet each. You can to put a decorative border around each bulletin board. You will buy rolls of border that contain 20 feet per roll 2

Respuesta :

First, we find the perimeter of each board by adding their sides

[tex]P=6+6+6+6=24ft[/tex]

The perimeter of each board is 24 feet long.

Then,

[tex]24\times3=72ft[/tex]

The teacher would need 72 feet to decorate all three boards.

If each roll has 20 feet, then there would be needed 4 rolls in total to half enough to decorate all three boards.

Hence, the number of rolls is 4.

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