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# Help

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1

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.

Mar 23, 2018

### Best Answer

#1
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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.

Mar 23, 2018
edited by hectictar  Mar 23, 2018

### 1+0 Answers

#1
+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