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Mathematics 12 Online
OpenStudy (anonymous):

Circle A has center of (2, 8), and a radius of 2 and 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). <--- My answer Rotate circle A 270° about the center. Reflect circle A over the line x=1 Dilate circle A by a scale factor of 5.

OpenStudy (plasmataco):

all circles are similar XD

OpenStudy (plasmataco):

hang on, imma get another peice of paper

OpenStudy (anonymous):

oh ok ^w^

OpenStudy (plasmataco):

are these all one answer or 4 different answers?

OpenStudy (anonymous):

4 different answers (:

OpenStudy (plasmataco):

I think it is the last one because when you dilate something, it gets bigger. when a circle with a radius of 2 is dialated by 5, it becomes a circle with a radius of 10

OpenStudy (plasmataco):

then, you can say the circles are congruent.

OpenStudy (plasmataco):

???

OpenStudy (anonymous):

oh ok are u sure it would be the last one ? just wondering

OpenStudy (plasmataco):

not 100%, buttttt.... when you translate (the first answer) you just move the points. That doesn't really prove anything except that the first circle can fit in the second one.

OpenStudy (plasmataco):

It's either the first one or the last one. it's your choice.

OpenStudy (anonymous):

oh ok ^-^ thank you

OpenStudy (plasmataco):

the definition of similar is that it has sides(or radius) that correspond to an equal porportion.

OpenStudy (anonymous):

oh ok i see what u mean now ^w^

OpenStudy (plasmataco):

any other questions? my bed time is coming in hot. XD cons of being 13

OpenStudy (anonymous):

lol i know the filling xD yea i have one more :P

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