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Refer to Problems 1-3 to solve Problems 4–6. The first one is done for you. 4. A scale factor between 0 and 1 produces a similar figure that is smaller than the original figure. 5. In Problem 2, YZ = _=4V5, and UV = v=2v5. The ratio of YZ to UV in simplest form is 6. If one polygon can be mapped to another by a series of then the polygons are Original content Copyright © by Houghton Mifflin Harcourt. Additions and changes to the original content are the responsibility 218

User Isaac Madwed
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The ratio of YZ to UV is 2:1

1) Considering that the distance between YZ is 4√5 and the distance between points U and V is 2√5 the ratio of YZ to UV can be found through this:


(YZ)/(UV)=\frac{4\sqrt[]{5}}{2\sqrt[]{5}}

2) Let's rationalize it by multiplying both numerator and denominator by √5 to simplify removing the radicals on the denominator.


(YZ)/(UV)=\frac{4\sqrt[]{5}}{2\sqrt[]{5}}\cdot\frac{\sqrt[]{5}}{\sqrt[]{5}}=\frac{4\sqrt[]{5^2}}{2\sqrt[]{5^2}}=(4\cdot5)/(2\cdot5)=(2)/(1)

3) So the ratio of YZ to UV is 2:1

User Trmaphi
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