Circle Y is shown. Line segments X Y and Z Y are radii. The length of X Y is r. Angle X Y Z is StartFraction 2 pi Over 3 EndFraction
If the radius is doubled, what is the effect on the area of sector XYZ?

The sector area will be Three-halves times greater.
The sector area will be 2 times greater.
The sector area will be Two-thirds times greater.
The sector area will be 4 times greater.

The sector area will be 4 times greater.

Step-by-step explanation: i did the quiz on e2020

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.