Study of triangles and trigonometric functions including sine, cosine, and tangent.
These trigonometric ratios help you find missing sides or angles in right triangles. They’re based on the relationships between the sides of a right triangle.
\[ \sin(\theta) = \frac{\text{opposite}}{\text{hypotenuse}} \] \[ \cos(\theta) = \frac{\text{adjacent}}{\text{hypotenuse}} \] \[ \tan(\theta) = \frac{\text{opposite}}{\text{adjacent}} \]
If you remember SOH-CAH-TOA, you’re golden!
They let you solve for unknown sides or angles, which is super useful in tons of real-life scenarios.
Finding the height of a tree using its shadow and the angle of elevation.
Calculating the length of a ramp needed to reach a certain height.
Sine, cosine, and tangent are ratios that relate the angles and sides in right triangles.