Finding the Missing Side in a Right Angle Triangle using Sine, Cosine, or Tangent

In South Africa, Grade 10 math introduces students to the fundamentals of trigonometry, including sine (sin), cosine (cos), and tangent (tan) functions. To find the missing side in a right angle triangle, students can use these trigonometric functions in relation to the angle and known sides.

For example, if given an angle and the length of the adjacent side, students can use the cosine function to find the length of the hypotenuse. Similarly, the sine function can be used to find the length of the opposite side, while the tangent function can help find the missing side in other scenarios. Mastering these concepts is essential for solving various trigonometric problems.