Printable Math Tests, Worksheets, and Activities - K-12 Explore topics such as trigonometric ratios and functions, Sine and Cosine Law, trigonometric identities, the unit circle, and radians and degrees with these worksheets. Pythagorean Theorem; Periodic Trigonometric Functions; Converting Between Degree and Radian Measure; Law of Sines; Trigonometry Calculator Practice (sin, cos, tan)