Can someone help ASAP ill give you good rating

Answer: radius is is 12.
Step-by-step explanation:
Explanation: A circle with equation of the form x2+y2=r2 will have radius r=√144=12 .
Sorry, I'm not sure on the bottom part
We know,
The general equation for circle is –
[tex] { \boxed{\bf{\rm \red {(x \: - \: a)² \: + \: (y \: - \: b)² \: = \: r²}}}} [/tex]
[tex] \bf (a, \: b) \: = \: center \: coordinates [/tex]
[tex] \bf r \: = \: radius [/tex]
[tex] \bf a \: = \: 0 \: , \: b \: = \: 0 \: , \: r \: = \sqrt{144} \: = \: 12 [/tex]
[tex] \bf Center \: coordinates \: = \: (0, \: 0) [/tex] [Answer]
[tex] \bf Radius \: = \: 12 [/tex] [Answer]
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NOTE – Refer the above attachment.
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