Using the Sine, Cosine, or Tangent Function to Solve for the Angles in a Right Triangle
You'll practice solving for angles in a right triangle using sine, cosine, or tangent.
Right Triangle Trigonometry: Trigonometric Ratios
You'll practice finding values of trigonometric ratios of given angles and of angles having the given trigonometric ratios.
Right Triangle Trigonometry: Using the Sine Ratio
You'll practice using the sine ratio to calculate measurements of right triangles.
Sine and Cosine Values on the Unit Circle (Angles in Radians)
You'll memorize the sine and cosine of the special angles of a unit circle written in radians.
The Pythagorean Theorem
You'll practice using the Pythagorean theorem to find the unknown side length of a right triangle.
Sine and Cosine Values on the Unit Circle (Angles in Degrees)
You'll memorize the sine and cosine values associated with reference angles of 0, 30, 45, 60, and 90 degrees.
Finding Standard-Position Angles
You'll find the standard-position angle for a given reference angle.
Angles: Basic Terminology
You'll practice identifying angles and parts of angles.
Right Triangle Trigonometry: Using the Cosine Ratio
You'll use the cosine ratio to calculate measurements of right triangles.
Right Triangle Trigonometry: Using the Tangent Ratio
You'll practice using the tangent ratio to calculate measurements of right triangles.