Solving right triangles

Find missing sides and angles with the three ratios and inverse trig functions.

Standards:G-SRT.C.8

Try it: three questions

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

Question 1 of 3

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

Question 2 of 3

Convert 5π/12 radians to degrees.

Question 3 of 3

Convert 5π/6 radians to degrees.

How this fits in

Solving right triangles 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
Special right triangles
Angles of elevation and depression
Radians and degrees
The unit circle
Graphs of sine and cosine
Law of Sines and Law of Cosines
Trigonometric identities

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