Answer:
x² + y² = 4
Step-by-step explanation:
The equation of a circle centred at the origin is
x² + y² = r² ← r is the radius]Here r = 2, thus
x² + y² = 4
Answer:
the 3rd one
Step-by-step explanation:
Answer:
Im doing quite ok.
Step-by-step explanation:
How have you been?