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If the scale factor between  two circles is mc019-1.jpg what is the ratio of their areas?
 
asked Sep 5, 2015 in GEOMETRY by anonymous
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The scale factor of two circles is ratio of their radius.

The scale factor of two circles is image.

The area of circle is image.

The ratio of two circle areas is image.

image

image

image.

The ratio of their areas is image.

Option (2) is correct choice.

answered Sep 5, 2015 by Sammi Mentor
edited Sep 5, 2015 by Sammi

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