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)

asked by dsf

3 years ago

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1 answer

we need
(20+2w)^2 - 20^2 = 20^2
now just solve for w.

answered by oobleck

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Question

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)

1 answer

we need
(20+2w)^2 - 20^2 = 20^2
now just solve for w.

oobleck · Accepted Answer

we need (20+2w)^2 - 20^2 = 20^2 now just solve for w.