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Suppose x is any positive number.

Circle 1: center (−7, 4) and radius 8x

Circle 2: center (−7, 4) and radius 2x

 

Why is circle 1 similar to circle 2?

Circle 1 and circle 2 have the same diameter.

Circle 1 is a dilation of circle 2 with a scale factor of 4.

Circle 1 is congruent to circle 2.

Circle 1 is a dilation of circle 2 with a scale factor of 0.25.

oscar.a1551  Mar 23, 2018

Best Answer 

 #1
avatar+7339 
+3

The radius of circle 1 is  8x

The radius of circle 2 is  2x

 

The radius of circle 1 is  4  times the radius of circle 2, so

 

Circle 1 is a dilation of circle 2 with a scale factor of 4.

hectictar  Mar 23, 2018
edited by hectictar  Mar 23, 2018
 #1
avatar+7339 
+3
Best Answer

The radius of circle 1 is  8x

The radius of circle 2 is  2x

 

The radius of circle 1 is  4  times the radius of circle 2, so

 

Circle 1 is a dilation of circle 2 with a scale factor of 4.

hectictar  Mar 23, 2018
edited by hectictar  Mar 23, 2018

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