How many degrees are there in the angle between the hour hand and the minute hand of a clock, when it is  $9$ $\mathrm{o}\text{'}$clock?

Write the final result without the degree symbol.

Measure each of the following angles with the help of a protractor and write the measure in degrees. ($\left(90/45/120\right)$)

Measure each of the following angles with the help of a protractor and write the measure in degrees:

If the measure of $\angle DEF$ is $k°$, then find the value of $k$.

If the measure of $\angle LMN$ is $k°$, then find the value of $k$.

If the measure of $\angle RST$ is $k°$, then find the value of $k$.

Measure each of the following angles with the help of a protractor and write the measure in degrees:

Construct an angle of $25°$ with the help of a protractor.