Study of triangles and trigonometric functions including sine, cosine, and tangent.
When you see a word problem, sketch a triangle and label the sides and angles. This helps you see which trigonometric function to use and avoid mixing up the sides. Diagrams turn tricky problems into simple puzzles!
Draw a right triangle for elevation problems to spot which sides are opposite and adjacent.
Label all known values before choosing sine, cosine, or tangent.