Q: What are the answers for chapter 4 scale factor and similarity test?

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Yes they are. In a 2-dimensional plane, a circle is completely defined by the location of its centre and its radius. The first of these is irrelevant for similarity. The second, its radius is also the circle's only scale factor. And since similarity permits changes in the scale, a circle is not changed by altering its scale factor. Consequently all circles are similar.

Tautologically!

Scale factor and perimeter are related because if the scale factor is 2, then the perimeter will be doubled. So whatever the scale factor is, that is how many times the perimeter will be enlarged.

The areas are related by the square of the scale factor.

well.... first off you have to find the scale factor...

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Yes they are. In a 2-dimensional plane, a circle is completely defined by the location of its centre and its radius. The first of these is irrelevant for similarity. The second, its radius is also the circle's only scale factor. And since similarity permits changes in the scale, a circle is not changed by altering its scale factor. Consequently all circles are similar.

You increase the scale factor.

Tautologically!

The area scale factor is the square of the side length scale factor.

Scale factor and perimeter are related because if the scale factor is 2, then the perimeter will be doubled. So whatever the scale factor is, that is how many times the perimeter will be enlarged.

1 shape cannot have a scale factor. A scale factor is something (a factor) that relates one shape to another.

The scale factor.The scale factor.The scale factor.The scale factor.

A scale Factor is Algbrea so you have to... x - + and/or divided.

how do you find the scale factor of two circles

A scale factor requires two measures.

The areas are related by the square of the scale factor.

The area is directly proportional to the square of the scale factor. If the scale factor is 2, the area is 4-fold If the scale factor is 3, the area is 9-fold If the scale factor is 1000, the area is 1,000,000-fold