a photograph measures 9 in by 12 in. earl put it in a frame that addded 2in to everyside. find the ouside perimeter and total of the photograph and frame.

9 answers

I will be happy to check your work.
would i add all the numbers toegther ?
You need to tell us what the formula for a perimeter is before you can solve this problem.

After you post that information, we'll try to help you.
would the formula be p for piermeter adding the numbers?
You're getting there.

What numbers do you add to find the perimeter?
would i add 9 +12?
That's partly right.

Study this web site to learn what a perimeter is.

http://www.mathopenref.com/rectangleperimeter.html
would i add 9+9+12+12?
Yay! You've got it!!!!

The perimeter of the photo is:

(2 * 9) + (2 * 12 = 18 + 24
18 + 24 = 42 inches
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Now add 2 inches to each side.

4 + 9 = 13
4 + 12 = 16

(2 * 13) + (2 * 16) = 26 + 32
26 + 32 = 58 inches for the perimeter of the frame