Look at the circle below.

\[\angle{XYZ}\] is

\[\dfrac{1}{4}\] of a full turn.
A circle with center point Y and two rays. Ray YX points to 9 o'clock. Ray YZ points to 6 o'clock.
\[X\]
\[Y\]
\[Z\]
A circle with center point Y and two rays. Ray YX points to 9 o'clock. Ray YZ points to 6 o'clock.
How many degrees does
\[\angle{XYZ}\] measure?
Choose 1 answer:
Choose 1 answer:
(Choice A)
\[45\degree\]
A
\[45\degree\]
(Choice B)
\[90\degree\]
B
\[90\degree\]
(Choice C)
\[120\degree\]
C
\[120\degree\]

Since $\angle XYZ$ is one-fourth of a full turn, and there are 360 degrees in a full turn, we can find the measurement of $\angle XYZ$ by dividing 360 by 4. Therefore, $\angle XYZ$ measures $360 \div 4 = \boxed{90}$ degrees.