Asked by Lizzie
A square painting is surrounded by a 3-cm-wide frame. If the total area of the painting plus the frame is 81 cm2, find the dimensions of the painting.
Answers
Answered by
drwls
Let painting height/width be x.
(x+6)^2 = 81
x + 6 = 9
x = 3
(x+6)^2 = 81
x + 6 = 9
x = 3
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