The trigonometric ratios sine, cosine and tangent are used to calculate angles and sides in right angled triangles. We are now going to extend trigonometry beyond right angled triangles and use it ...

Trigonometry is the branch of math that studies triangles, with a particular focus on the relationships between angles and the lengths of corresponding sides. Interestingly enough, the ...

Calculate the length AB. Give the answer to one decimal place. Label the sides of the triangle \(o\), \(a\) and \(h\). Next choose the correct ratio from \(s^o_h~c^a_h~t^o_a\). The length \(h\) is ...

These functions, such as the sine and cosine, are defined using right triangles. Imagine a right triangle with one side that lies flat against a table and another that shoots straight up from ...

This angle is then used to describe the ratios of the sides of the right-angled triangle through sin, cos and tan. But circles and right-angled triangles are very different, and the price of ...

They did it by putting the triangle inside a rectangle and completely circumvented the ideas of sin, cos, and tan, which are key to trigonometry today. “This is a whole different way of looking ...