The trigonometric ratios for the angles 30°, 45° and 60° can be calculated using two special triangles. An equilateral triangle with side lengths of 2 cm can be used to find exact values for ...

An equilateral triangle with side lengths of 2 cm can be used to calculate accurate values for the trigonometric ratios of 30° and 60°. The equilateral triangle can be split into two right ...