Answer
$\text{reference}$
Work Step by Step
The acute angle formed by the terminal side of an angle $\theta$ in standard position and the horizontal axis is the $\underline{\text{reference}}$ angle of $\theta$ and is denoted by $\theta'$.
You need to log in to continue
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.