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.
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?
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
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
The perimeter of the photo is:
(2 * 9) + (2 * 12 = 18 + 24
18 + 24 = 42 inches
________________________________
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