Question

Circle A has center of (4, 6) and a radius of 5, and circle B has a center of (1, 0) and a radius of 15. What steps will help show that circle A is similar to circle B?

Dilate circle A by a scale factor of 3.

Translate circle A using the rule (x−3, y+6).

Rotate circle A 180° about the center.

Reflect circle A over the y-axis.

Answer 1

@ganeshie8

Answer 2

@paki

Answer 3

Notice that the radius of Circle A is 5,
and the radius of Circle B is 15

Answer 4

Can we get Circle B by scaling the Circle A by a scale factor of 3 ?

Answer 5

yes

Answer 6

Very good :) so thats the key thing that helps in proving both circle are similar

Answer 7

scaling is called Dilating

Answer 8

yes

Answer 9

i know that and i get scale factors

Answer 10

thanks