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March 3, 2015

March 3, 2015

Posted by **Samantha** on Sunday, October 25, 2009 at 8:37pm.

Solve for l.

Please show me how you got your answer so I will understand how to do these problems. Thank you.

- Algebra1 -
**Ms. Sue**, Sunday, October 25, 2009 at 8:48pmP=2l+2w

Perimeter = 2 * length + 2 * width

This is how you find the perimeter (distance around) a rectangle.

Suppose you want to put a border around a room. If the room is 15 feet long and 12 feet wide, then you'd figure the perimeter this way:

P = 2l + 2w

P = (2 * 15) + (2 * 12)

P = 30 + 24

P = 54

So -- you'd need 54 feet of the border for the room.

- Algebra1 -
**Samantha**, Sunday, October 25, 2009 at 8:56pmthanks!

- Algebra1 -
**Ms. Sue**, Sunday, October 25, 2009 at 8:57pmYou're welcome.

- Algebra1 -
**Anonymous**, Sunday, March 17, 2013 at 12:47pmHow many gallons of paint is needed to paint a wall whose dimensions are 11 feet by 19 feet with a 8 foot ceiling?

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