Suppose x is any positive number. Circle 1 has a center at (1, - 6) and a radius of 5x. Circle 2 has a center at (5, -1) and radius of 3x. Why is Circle 1 similar to Circle 2?

Circle 1 and Circle 2 have the same circumference, and the radius of Circle 1 is 3/5 times the length of the radius of circle 2

Circle 1 is a translation of 4 units left and 5 units down from circle 2, and a dilation of circle 2 with a scale factor of 3/5.

Circle 1 is a translation of 4 units left and 5 units down from circle 2, and a dilation of circle 2 with a scale factor of 5/3.

Circle 1 and Circle 2 have the same area, and the radius of Circle 1 is 5/3 time the length of Circle 2’s radius.