The Foundation of Relationships Between Angles and Sides
Trigonometry is the branch of mathematics that studies the relationships between the angles and sides of triangles. It's the mathematical tool that helps us solve problems involving triangular shapes and circular motion.
Born in ancient Egypt and Babylon around 3000 years ago, trigonometry helped early astronomers track celestial bodies and architects build magnificent structures like pyramids and temples.
Today, trigonometry powers GPS navigation, computer graphics, sound engineering, medical imaging, robotics, and space exploration. It's literally everywhere in our digital world!
The right triangle (with one 90° angle) is the cornerstone of trigonometry. It has three sides: hypotenuse (longest), opposite (across from angle), and adjacent (next to angle).