SOLUTION: A square photograph,9 inches on a side , is surrounded by a square frame. If the frame's width is 3 inches what is the area?

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Question 970734: A square photograph,9 inches on a side , is surrounded by a square frame. If the frame's width is 3 inches what is the area?
Answer by josgarithmetic(39623) About Me  (Show Source):
You can put this solution on YOUR website!
You mean the UNIFORM WIDTH of the frame around the square picture is 3 inches.

Picture area, 9%2A9;
Total area frame plus picture %289%2B2%2A3%29%289%2B2%2A3%29.
Area of just the surrounding frame, highlight%28%289%2B2%2A3%29%289%2B2%2A3%29-9%2A9%29, and (1) this can be generalized and (2) the 9%2A9 terms will cancel according to being present as additive inverses.

%289%2B6%29%5E2-9%5E2
9%5E2%2B54%2B54%2B36-9%5E2
2%2A54%2B36
108%2B36
highlight%28144%29