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Mathematics 14 Online
OpenStudy (anonymous):

how can i prove that two circles C with the radius of 4 and E with the radius 3. medal and fan will be given

OpenStudy (zzr0ck3r):

prove what?

OpenStudy (anonymous):

oh sorry ... to prove they are similar

OpenStudy (anonymous):

@zzr0ck3r

OpenStudy (zzr0ck3r):

I suck at geometry but I knew the question was not complete:)

OpenStudy (anonymous):

so you have no idea ? @zzr0ck3r

OpenStudy (anonymous):

@hero can you help me please

OpenStudy (zzr0ck3r):

none, sorry. I have never taken a geometry class/....

OpenStudy (anonymous):

its ok :)

OpenStudy (anonymous):

@Luigi0210 hi can you help me please

OpenStudy (zzr0ck3r):

do you know where there center is?

OpenStudy (anonymous):

on the graph?

OpenStudy (zzr0ck3r):

yes

OpenStudy (zzr0ck3r):

we can only say they are similar if we know the center and radius.

OpenStudy (anonymous):

c (-3,1) e(4,9)

OpenStudy (zzr0ck3r):

slide C over 7 units to the right, and up 8 units, and multiply the radius of C by 3/4

OpenStudy (zzr0ck3r):

(right 7, up 8; 4/3)

OpenStudy (anonymous):

YES!!! i understand now thank you

OpenStudy (zzr0ck3r):

(translation; dilation) = (right 7, up 8; 4/3)

OpenStudy (zzr0ck3r):

np

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