Reference Angles

In this calculus worksheet, learners identify terminal and coterminal angles using the unit circle. They identify coterminal angles between 0and 2pi and between 0 and 360 degrees. There are 34 questions with an answer key.

Forget hours, divide the day into radians instead. Class members convert the angles in a pie chart of daily activities into radian measures. They add angle measures for multiple activities then determine a relationship between the radian...

Learn about angles with this helpful reference tool. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.

The process of drawing a reference angle in any quadrant on a unit circle is shown here. This lesson is 2 of 9 in the series titled "Finding the Reference Angle."

The process of drawing a reference angle in any quadrant on a unit circle is shown here. This lesson is 4 of 9 in the series titled "Finding the Reference Angle."

The process of drawing a reference angle in any quadrant on a unit circle is shown here. This lesson is 6 of 9 in the series titled "Finding the Reference Angle."

The process of drawing a reference angle in any quadrant on a unit circle is shown here. This lesson is 7 of 9 in the series titled "Finding the Reference Angle."

The process of drawing a reference angle in any quadrant on a unit circle is shown here. This lesson is 8 of 9 in the series titled "Finding the Reference Angle."

The process of drawing a reference angle in any quadrant on a unit circle is shown here. This lesson is 9 of 9 in the series titled "Finding the Reference Angle."

The process of drawing a reference angle in any quadrant on a unit circle is shown here. This lesson is 1 of 9 in the series titled "Finding the Reference Angle."