Circle A has a center of (3, 4) and a radius of 5. Circle C has a center of (0, −1) and a radius of 2. Prove that the two circles are similar.
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Question

Circle A has a center of (3, 4) and a radius of 5. Circle C has a center of (0, −1) and a radius of 2. Prove that the two circles are similar.
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perl · Answer

all circles are similar

anonymous · Answer

ik but it is asking to explain how one the ratio of difference between the circles

anonymous · Answer

the question asks for you to find the difference between the circles i think

perl · Answer

if we can show two transformations to go from one circle to the other, and the transformations are either translations or dilations, then it is similar

anonymous · Answer

how would i do that?

perl · Answer

move circle C so that it is at center of circle A

anonymous · Answer

okay

perl · Answer

now dilate it by a factor of 5/2

anonymous · Answer

how did u ge 5/2?

anonymous · Answer

*get

perl · Answer

5/2 * 2 = 5

anonymous · Answer

how should i answer then?

anonymous · Answer

@perl im kinda pressed for time : (

perl · Answer

the slope of a perp. line is the negative reciprocal of the slope of the given line

anonymous · Answer

thats how i would answer?

perl · Answer

i cant give you the answer, but i can guide you

perl · Answer

im trying to guide you ☺

anonymous · Answer

lol ok can u tell me if my answer is right so far?

perl · Answer

ok

perl · Answer

so what is the negative reciprocal of -2 ?