The length of the side (in \( \mathrm{cm} \) ) of an equilateral triangle inscribed in a circle ...

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The length of the side (in \( \mathrm{cm} \) ) of an equilateral triangle inscribed in a circle of radius \( 8 \mathrm{~cm} \) is
(a) \( 16 \sqrt{3} \)
(b) \( 12 \sqrt{3} \)
(c) \( 8 \sqrt{3} \)
(d) \( 10 \sqrt{3} \)
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