AM-845

Equation of a circle (centre–radius form)

A Math · Secondary 3 · Medium · Equation of a circle (centre–radius form)

1. $(x+5)^2+(y+6)^2=20$
2. $(x-5)^2+(y-6)^2=20$
3. $(x-5)^2+(y-6)^2=\sqrt{20}$
4. $(x+5)^2+(y+6)^2=\sqrt{20}$

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