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5.  Suppose x is any positive number.

Circle 1: center  (0, 0) and radius 2x

Circle 2: center  (0, 0) and radius 10x

 

Why is circle 1 similar to circle 2?

 

Circle 1 and circle 2 have equal areas.

Circle 2 is a dilation of circle 1 with a scale factor of 5.

Circle 2 is a dilation of circle 1 with a scale factor of 0.2.

Both circles have congruent diameters.

 Mar 19, 2018
 #1
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Circle 2 is a dilation of circle 1 with a scale factor of 5.

 

 

cool cool cool

 Mar 19, 2018

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