Radians and degrees

Convert between the two angle measures and understand a radian as an arc-length ratio.

Standards:F-TF.A.1

Try it: three questions

Real questions from the practice bank. Tap an answer to check it.

Question 1 of 3

Convert 5π/12 radians to degrees.

Question 2 of 3

A clock hand rotates 210° from 12 o'clock. Express this rotation in radians.

Question 3 of 3

Convert 5π/6 radians to degrees.

How this fits in

Radians and degrees is one skill in the Trigonometry unit. Students read the unit lesson, then earn a bronze, silver, or gold medal on their last 10 answers. Medals never go down. A mastered unit comes back for review after 1, 3, 7, 16, and 35 days so it stays learned.

Sine, cosine, and tangent ratios
Solving right triangles
Special right triangles
Angles of elevation and depression
The unit circle
Graphs of sine and cosine
Law of Sines and Law of Cosines
Trigonometric identities

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