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Mathematics 21 Online
OpenStudy (anonymous):

need help pic in comments!

OpenStudy (anonymous):

OpenStudy (skullpatrol):

Any ideas?

OpenStudy (anonymous):

i know it involves distance formula but thats it

OpenStudy (skullpatrol):

$$\Huge x^2+y^2=r^2$$

OpenStudy (anonymous):

or that

OpenStudy (mikurout):

general equation of circle is x^2 +y^2 =r^2 where r is radius.

OpenStudy (anonymous):

oh so 12.25

OpenStudy (skullpatrol):

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