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\#1.) Graph the angles below on the Unit Circle. Label the axes. Draw the initial and terminal side - Draw an arrow representing the span of the angle Label the reference angle in degrees

Ask by Brooks Vega. in the United States
Mar 20,2025

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To graph an angle on the unit circle: 1. **Draw the Unit Circle and Axes**: Sketch a circle with center at (0,0) and axes labeled. 2. **Draw the Initial Side**: Start from the positive x-axis. 3. **Plot the Angle**: Measure the angle counterclockwise from the initial side. 4. **Draw the Terminal Side**: Extend the ray to the circle. 5. **Label the Reference Angle**: Find the acute angle between the terminal side and the x-axis. Example for \(150^\circ\): - Draw the circle and axes. - Start at the positive x-axis. - Measure \(150^\circ\) counterclockwise. - Draw the terminal side intersecting the circle. - Label the reference angle as \(30^\circ\). This method helps visualize any angle on the unit circle by following these steps.

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Sure! To graph angles on the Unit Circle, first ensure your axes are labeled with the x-axis representing cosine values and the y-axis representing sine values. For any angle θ, the initial side starts along the positive x-axis. To mark the terminal side, measure θ degrees counter-clockwise for positive angles or clockwise for negative angles. Don't forget to draw an arrow from the initial side to the terminal side, showing the direction. The reference angle is then the acute angle formed between the terminal side and the x-axis, which is always measured as less than 90 degrees. For example, for a 150° angle, the reference angle would be 30°. Happy graphing! Now, let’s visualize how this helps in real-world applications! When you understand how angles behave on the Unit Circle, you can apply that knowledge to various fields like physics and engineering. For instance, when dealing with rotational motion or analyzing waveforms, the circular trigonometric identities streamline calculations, and drawing these angles helps in visualizing problems like projectile motion and harmonic motion. It’s a fun marriage of math and real life!

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