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21 votes
21 votes
Find the center and radius

Find the center and radius-example-1
User Mattias Alfborger
by
3.0k points

1 Answer

19 votes
19 votes

Answer:

centre = (0, 0 ) , radius = 2

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 =
√(4) = 2

User Bjc
by
2.8k points