Circle A has center of (2, 8) and a radius of 2. Circle B has a center of (5, 4) and a radius of 10. What steps will help show that circle A is similar to circle B?

Translate circle A using the rule (x−3, y+4).

Rotate circle A 270° about the center.

Reflect circle A over the line x=1

Dilate circle A by a scale factor of 5.

Question

Circle A has center of (2, 8) and a radius of 2. Circle B has a center of (5, 4) and a radius of 10. What steps will help show that circle A is similar to circle B?

 Translate circle A using the rule (x−3, y+4).

 Rotate circle A 270° about the center.

 Reflect circle A over the line x=1

 Dilate circle A by a scale factor of 5.

anonymous · Answer

Circles are always similar, and you can prove it by using their radius or diameter.

anonymous · Answer

You don't need to move the circle at all to prove it.

anonymous · Answer

I see what you are saying. Does that mean that none of the answer choices are correct? I'll have to pick one eventually. I rather get one from you, then myself.

anonymous · Answer

@jcpd910

anonymous · Answer

One is correct, the one that doesn't involve moving the circle.

anonymous · Answer

D? That's the choice I was going with!

anonymous · Answer

Correct. :D

anonymous · Answer

Thank you so much! (:

anonymous · Answer

No problem.