Circle A has center of (6, 7) and a radius of 4, and circle B has a center of (2, 4) and a radius of 16. What steps will help show that circle A is similar to circle B?

Translate circle A using the rule (x + 4, y + 3).
Rotate circle A 45° about the center.
Dilate circle A by a scale factor of 4.
Reflect circle A about the origin.

Question

Circle A has center of (6, 7) and a radius of 4, and circle B has a center of (2, 4) and a radius of 16. What steps will help show that circle A is similar to circle B?

Translate circle A using the rule (x + 4, y + 3).
 Rotate circle A 45° about the center.
 Dilate circle A by a scale factor of 4.
 Reflect circle A about the origin.

snowflake0531 · Answer

You want to dilate A by a scale factor of 4 so that Circle A's radius is as big as Circle B's