# What would be the answer to this problem?

• October 22nd 2008, 09:02 PM
mathdummy22
What would be the answer to this problem?
a picture frame measures 13 in by 9 in. There is 88^2 of the picture showing. the frame is uniform in thickness. Find the thickness of the frame.
• October 22nd 2008, 09:36 PM
Shyam
Quote:

Originally Posted by mathdummy22
a picture frame measures 13 in by 9 in. There is 88^2 of the picture showing. the frame is uniform in thickness. Find the thickness of the frame.

Is that $88^2$ or $88 \;in^2$ ???
• October 22nd 2008, 10:26 PM
terr13
Assuming you mean 88 in, the total area of the painting is 13*9. The area shown is 88. If it is uniformly thick all around, we can subtract the thickness form the painting.
$(13-n)(9-n) = 88$ Solve the quadratic, and then divide n by 2, since we are counting for two sides combined (top and bottom or left and right)
• October 23rd 2008, 05:14 AM
mathdummy22
its 88 in^2