91Ó°ÊÓ

Find the linear velocity of a point moving with uniform circular motion, if the point covers a distance \(s\) in an amount of time \(t\), where $$ s=3 \mathrm{ft} \text { and } t=2 \mathrm{~min} $$

Find the radian measure of angle \(\theta\), if \(\theta\) is a central angle in a circle of radius \(r\), and \(\theta\) cuts off an arc of length \(s\). \(r=3 \mathrm{~cm}, s=9 \mathrm{~cm}\)

Draw each of the following angles in standard position and then name the reference angle. $$ 210^{\circ} $$

For each problem below, \(\theta\) is a central angle in a circle of radius \(r\). In each case, find the length of arc \(s\) cut off by \(\theta\). \(\theta=2, r=3\) inches

Draw each of the following angles in standard position and then name the reference angle. $$ 150^{\circ} $$

Use the unit circle to evaluate each function. \(\cos 225^{\circ}\)

For each problem below, \(\theta\) is a central angle in a circle of radius \(r\). In each case, find the length of arc \(s\) cut off by \(\theta\). \(\theta=3, r=2\) inches

Find the linear velocity of a point moving with uniform circular motion, if the point covers a distance \(s\) in an amount of time \(t\), where $$ s=10 \mathrm{ft} \text { and } t=2 \mathrm{~min} $$

Find the radian measure of angle \(\theta\), if \(\theta\) is a central angle in a circle of radius \(r\), and \(\theta\) cuts off an arc of length \(s\). \(r=10\) inches, \(s=5\) inches

Use the unit circle to evaluate each function. \(\cot 90^{\circ}\)