Asked by dsf
An art dealer advises that, for the best display of a painting, the area of the frame should be the area of the painting. Determine the best width of the frame for a painting 20 cm by 20 cm, if the width is to be the same on all sides. Round your answer to the nearest tenth. (6 marks)
Answers
Answered by
oobleck
we need
(20+2w)^2 - 20^2 = 20^2
now just solve for w.
(20+2w)^2 - 20^2 = 20^2
now just solve for w.
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