### Practice Test

Convert $\mathrm{-620\xb0}$ to radians.

Find the length of a circular arc with a radius 12 centimeters subtended by the central angle of $\mathrm{30\xb0}.$

Find the area of the sector with radius of 8 feet and an angle of $\frac{5\pi}{4}$ radians.

Find the angle between $\mathrm{0\xb0}$ and $\text{360\xb0}$ that is coterminal with $\mathrm{375\xb0}.$

Find the angle between 0 and $2\pi $ in radians that is coterminal with $-\frac{4\pi}{7}.$

Draw the angle $-\frac{\pi}{6}$ in standard position on the Cartesian plane.

A carnival has a Ferris wheel with a diameter of 80 feet. The time for the Ferris wheel to make one revolution is 75 seconds. What is the linear speed in feet per second of a point on the Ferris wheel? What is the angular speed in radians per second?

Find the missing sides of the triangle $ABC:\mathrm{sin}\phantom{\rule{0.3em}{0ex}}B=\frac{3}{4},c=12.$

The angle of elevation to the top of a building in Chicago is found to be 9 degrees from the ground at a distance of 2000 feet from the base of the building. Using this information, find the height of the building.

Compute sine of $\mathrm{240\xb0}.$

State the range of the sine and cosine functions.

Find the exact value of $\mathrm{tan}\phantom{\rule{0.3em}{0ex}}\frac{\pi}{3}.$

Use reference angles to evaluate $\mathrm{tan}\phantom{\rule{0.3em}{0ex}}\mathrm{210\xb0}.$

If $\text{cos}\phantom{\rule{0.3em}{0ex}}t=\frac{\sqrt{3}}{2},$ find $\text{cos}(t-2\pi ).$

Find the missing angle: $\mathrm{cos}\left(\frac{\pi}{6}\right)=\mathrm{sin}\left(\_\_\_\right)$