UK Secondary (7-11)
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Circles with translations

Interactive practice questions

A circle centred at ($7$7, $-8$8) has an $x$x-intercept at ($-10$10, $0$0). Find the exact radius of the circle.

Easy
Approx 3 minutes
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Consider the circle with equation $\left(x-0.7\right)^2+\left(y+4.4\right)^2=3$(x0.7)2+(y+4.4)2=3.

Consider the circle with equation $\left(x+3.1\right)^2+\left(y-\frac{3}{2}\right)^2=\frac{9}{16}$(x+3.1)2+(y32)2=916.

Consider the circle with equation $\left(x-8\right)^2+\left(y+1\right)^2=13$(x8)2+(y+1)2=13.

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