AM-779

Equation of a circle (centre–radius form)

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

1. $(x-\frac{20}3)^2+y^2=\frac{325}9$
2. $(x+\frac{20}3)^2+y^2=\frac{325}9$
3. $(x-\frac{20}3)^2+y^2=\frac{289}9$
4. $x^2+y^2-\frac{40}3x+\frac{325}9=0$

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