Hard SAT Math Question 74 — Video Explanation | 1600.now

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An equilateral triangle with side lengths

3 m

is inscribed in a circle with radius

r

. Which of the following defines

r

in terms of

m

?

A

m 3

B

\frac{m}{3}

C

\frac{2 m}{2}

D

\frac{3}{2}