Reference Angles and Coterminal Angles Worksheets
This set of high school worksheets offers topics like finding the reference angles in degrees and radians; finding the coterminal angles for the indicated angles, positive and negative coterminal angles, and more. Reinforce the concept of reference and coterminal angles with the multiple response worksheets featured here.

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Read the coordinate plane and find the reference angle for each indicated angle. The angles are expressed in degrees. Problems without coordinate plane are also included.

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(3 Worksheets)
Each worksheet encompasses seven unique problems with the angles presented in radians. Determine the reference angle for each problem.

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Identify the coterminal angle between 0° and 360° for each given angle. Ex: Find the coterminal angle for 597°.

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Each worksheet contains six problems to find coterminal angles between 0 and 2 pi for the given angle (in radians).

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Positive and negative coterminal angles
The angles are presented in degrees or radians. Add 360° or 2 pi to find the positive coterminal angle. Subtract 360° or 2 pi to find the negative coterminal angle. Show your result on the coordinate plane.

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The worksheets comprise six unique questions covering the diverse aspects of reference angles and coterminal angles. Verify your responses with the answer key.

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(3 Worksheets)