When using trigonometry in right-angled triangles, each side is labelled based on a given angle, Ɵ. The hypotenuse (𝒉) is the longest side of the triangle, which is always opposite the right ...

Working with the graphs of trigonometric functions Working with trigonometric relationships in degrees Using the sine and cosine rules to find a side or angle in a triangle Using bearings in ...

A 3,700-year old Babylonian clay tablet reveals an ancient method of constructing right-angled triangles that makes it the world’s oldest and most accurate trigonometric table.

On pages 4 and 5 we find four-place logarithms of numbers, then logarithms of sums and differences (Gaussian logarithms) also to four places, then follow tables of logarithmic trigonometric ...