Trigonometric Values

Sine, Cosine and Tangent of 30º and 60º

In an equilateral triangle, all of the angles measures 60º. The height, h, divides the equilateral triangle into two equal right angles. Using the Pythagorean Theorem, the height is:

Equilateral Triangle Height

30º Sine Ratio

30º Cosine Ratio

30º Tangent Ratio


Sine, Cosine and Tangent of 45º

Diagonal of a Square

45º Sine Ratio

45º Cosine Ratio

45º Tangent Ratio

Diagonal of a Square

Table of Trigonometric Values

Table of Trigonometric Values