Polynomials and area

Yes. That is now correct. However, you have found an area, not a length. That is 544 square inches. That's less than 2 ft by 2 ft if it was a square.
In fact it is a rectangle 32 inches by 17 inches (2h+8 by h+5).
Awesome, thank you!
When you refer to area of the frame, what exactly do you mean? What shape is frame? You replied that it's not a rectangle. But then you keep applying the formula for area of a rectangle.
Going by my judgement and @lex I can get the answer using @skeeter 's frame dimensions, which include the painting plus the frame widths.

that would be the same as doing the painting plus the outer frame, but to me seems easier.
 
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