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?



Responses

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

Both circles have congruent diameters.
Both circles have congruent diameters.

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 5.

Circle 1 and circle 2 have equal areas.