### Mathematics Class X

Real Numbers
Polynomials
Arithmetic Progressions
Triangles
Coordinate Geometry
Introduction to Trigonometry
Circles
Constructions
Areas Related to Circles
Surface Areas and Volumes
Statistics
Probability

# Trigonometric Ratios of Some Specific Angles

Trignometric table

 Sin Cos Tan Not defined Cosec Not defined Sec Not defined Cot Not defined

Example

Find the lengths of the sides BC and AC in triangle ABC, right-angled at B where AB = 25 cm and using trigonometric ratios.

tan C

tan

BC =cm

sin =

AC = 50 cm

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