SAT Subject Test Mathematics Level 2

(Marvins-Underground-K-12) #1

In the figure above, the radius is 6, and the measure of the sector’s central angle is 30 ̊. The sector
has or of the area of the circle:


FOUR CIRCLE FORMULAS


Circumference   =   2πr =   πd

Area    of  a   Circle  =   πr^2

CIRCLES COMBINED WITH OTHER FIGURES


Some of the most challenging plane geometry questions are those that combine circles with other
figures.

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