Geometry+18.0

Students know the definitions of the basic trigonometric functions defined by the angles of a right triangle. They also know and are able to use elementary relationships between them. For example, tan(//x//) = sin(//x//)/cos(//x//), (sin(//x//))2 + (cos(//x//)) 2 = 1.
 * __Geometry 18.0__**


 * ~*~** Grade Back to Geometry Standards ~*~