McGraw Hill Integrated II, 2012
MH
McGraw Hill Integrated II, 2012 View details
8. Congruent and Similar Solids
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Exercise 34 Page 870

Similar solids have the same shape and all of their corresponding dimensions are proportional. The ratio of corresponding linear dimensions of two similar solids is the scale factor.

G

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Similar solids have the same shape and all of their corresponding dimensions are proportional. The ratio of corresponding linear dimensions is the scale factor. With this in mind, we will consider the given cylinders to find the scale factor.
Let's take two corresponding linear dimensions to find the scale factor.
a/b = 3/9
a/b = 1/3
a/b = 0.333333...
a/b = 0.33
a:b = 0.33
The scale factor of the two cylinders is 0.33. Therefore, the answer is G.