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A. \(\dfrac12\)
B. \(\dfrac1{\sqrt3}\)
C. \(\dfrac{\sqrt3}2\)
D. \(\dfrac2{\sqrt3}\)
E. \(\sqrt3\)
[spoiler]OA=D[/spoiler]
Source: Official Guide
In the figure above, \(PQ\) is a diameter of circle \(O, PR = SQ,\) and \(\triangle RST\) is equilateral. If the length of \(PQ\) is \(2,\) what is the length of \(RT ?\)
A. \(\dfrac12\)
B. \(\dfrac1{\sqrt3}\)
C. \(\dfrac{\sqrt3}2\)
D. \(\dfrac2{\sqrt3}\)
E. \(\sqrt3\)
[spoiler]OA=D[/spoiler]
Source: Official Guide
