McGraw-Hill Education GRE 2019

Questions 6 and 7 refer to the figure below.

A B

O

6. In the circle above, central angle AOB measures 120 degrees. If the radius
   of the circle is 3, what is the area of sector AOB?
   A 32 π
   B 3π
   C 6π
   D 9π
   E 18π


7. In the circle above, the length of arc AB is 3π. If the circle has an area of
   16π, what is the measure of central angle AOB?
   A 45
   B 6 7. 5
   C 95
   D 115
   E 135

A

O

x

B

120 °

8. In the figure above, the measure of angle AOB is 120 degrees. If the radius
   of OB is x, then arc AB is what fraction of the area of sector AOB, in terms
   of x?

A πx

B √3x

C (^2) x
D (^3) x
E (^4) x
414 PART 4 ■ MATH REVIEW
04-GRE-Test-2018_313-462.indd 414 12/05/17 12:05 pm