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find the center and radius

Find The Center And Radius class=

Sagot :

Answer:

centre = (0, 0 ) , radius = 2

Step-by-step explanation:

the equation of a circle centred at the origin is

x² + y² = r² ( r is the radius )

x² + y² = 4 ← is in this form

with centre (0, 0 ) and r = [tex]\sqrt{4}[/tex] = 2

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