The chord

Calculate a chord length which the distance from the center of the circle (S, 6 cm) equals 3 cm.

Correct answer:

t =  10.3923 cm

Step-by-step explanation:

$$\begin{gathered} r^2=3^2+(t\mathrm{/}2{)}^2 \\ t=2\sqrt{r^2-3^2} \\ t=2\sqrt{6^2-3^2}=10.3923\text{ cm} \end{gathered}$$

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