Final answer:
Trigonometry is a branch of mathematics that deals with the relationship between angles and sides of right-angled triangles. Trigonometric functions, such as sine and cosine, are ratios of the lengths of the sides of a right triangle. They can be used to solve various problems involving angles, distances, and heights.
Step-by-step explanation:
Trigonometry is a branch of mathematics that deals with the relationship between angles and sides of right-angled triangles. Trigonometric functions, such as sine and cosine, are ratios of the lengths of the sides of a right triangle. They can be used to solve various problems involving angles, distances, and heights.
For example, in the basic problem of trigonometry, you can use the cosine function to find the magnitude of a side TL given its adjacent side TLX and an angle. The equation TL = TLX cos(angle) can be used to solve for the length of TL.
Other trigonometric relationships, such as the law of sines and the law of cosines, are also useful in solving triangles and finding unknown sides or angles.