3 years ago

The center of a circle is at (0, 0), and the radius of the circle is 3 2 . Which equation represents the circle?

2 answers:

5 0

Answer:

x² + y² = 9

Step-by-step explanation:

The equation of a circle centred at the origin is

x² + y² = r² ← r is the radius

Here r = 3, hence

x² + y² = 3² ⇒ x² + y² = 9

4 0

Answer:

Step-by-step explanation:

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