SOLUTION: Film with a width of 35 millimeters is projected onto a screen where the width is 5 meters. What is the scale factor of this enlargement?

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Question 240136: Film with a width of 35 millimeters is projected onto a screen where the width is 5 meters. What is the scale factor of this enlargement?
Answer by Alan3354(69443) About Me  (Show Source):
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Film with a width of 35 millimeters is projected onto a screen where the width is 5 meters. What is the scale factor of this enlargement?
5 meters = 5000 mms
5000/35 =~ 143 times linearly
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The enlargement of the area is apx the square of that, = 20449 times the area.