CK-12 Geometry - Second Edition

(Marvins-Underground-K-12) #1

http://www.ck12.org Chapter 7. Similarity


Example 2:Using the picture above, change the scale factor to^13. FindQ′′.


Solution:Now the scale factor is^13 , soQ′′is going to be^13 the distance away fromPasQis. In other words,Q′′is
going to be 6×^13 =2 units away fromP.Q′′will also be collinear withQand center.


Example 3:KLMNis a rectangle with length 12 and width 8. If the center of dilation isKwith a scale factor of 2,
drawK′L′M′N′.


Solution:IfKis the center of dilation, thenKandK′will be the same point. From there,L′will be 8 units aboveL
andN′will be 12 units to the right ofN.

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