General Knowledge
TRIGONOMETRIC RATIOS
SCIENCE AND TECHNOLOGY
23 June 2026
TRIGONOMETRIC RATIOS
1. Trigonometric Ratios – Introduction
Trigonometric ratios are mathematical relationships between the sides of a right-angled triangle and one of its acute angles. They are used to determine unknown sides and angles in geometry and real-life situations. The six main trigonometric ratios are sine, cosine, tangent, cotangent, secant, and cosecant. These ratios help solve problems involving heights, distances, navigation, engineering, architecture, and physics. Trigonometry is an essential branch of mathematics that connects geometry with algebra. By studying trigonometric ratios, students
Sign up free to read the full article
Access all current affairs, state notes, subject notes and more — completely free.
Learn trigonometric ratios including sine, cosine, tangent, and cotangent. Understand right-angled triangles and their applications in geometry, physics, and engineering.
Keywords
trigonometric ratiossine cosine tangentright-angled trianglehypotenuseopposite adjacentcotangent secanttrigonometric functionsangle measurementtrigonometry basicswave analysis