Asked by Elizabeth

A photograph is 20cm long and 15cm wide. The length of a small print of the photograph is 4cm
Find:
A. The width of the small print
B. The ratio of the areas of the two photographs

Answers

Answered by R_scott
A. 15 / 20 = w / 4

B. the ratio of the areas is the square of the ratio of the side lengths
... area ratio = (20 / 4)^2
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