SAT Math Practice Question #37442 - SATify | SATify

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SAT Math Practice Question #37442 - SATify | SATify

#37442

geometry

circles

medium

45 sec

In a circle, an arc has a length of $4 π$ and subtends a central angle of $9 0^{\circ}$ . What is the circumference of the circle?

A.

$8 π$

B.

$12 π$

C.

$16 π$

D.

$20 π$