Trigonometric Functions: Basic Angles and Radian Measures

section warm up Section Warm-Up

Let’s review the six trigonometric functions. Use the following image to solve the problems that follow, then click on each problem to reveal the solution.

Right triangle with legs seven and twenty-four and hypotenuse twenty-five.

Think and Click Icon Find cosC
 

cosine of C equals adjacent divided by hypotenuse equals 24 divided by 25

 

Think and Click Icon Find sinB
 

sine of B equals opposite divided by hypotenuse equals 24 divided by 25

 

Think and Click Icon Find tanB
 

= tangent of B equals opposite divided by adjacent equals 24 divided by 7