Solving Right Triangles

When some of the sides and angles of a triangle are known, the other elements can be found using trigonometry. This is called solving a triangle.


Solving a triangle is the process of finding the unknown elements of a triangle using the trigonometric relationships.

Let’s learn how to find missing sides or missing angles in a triangle.

Finding the Sides

One of the most popular types of problems that students encounter in trigonometry textbooks is finding the shadows of objects. In solving these problems, you make use of the fact that the sun is very far away from the earth; therefore, you can consider that the ...

Get The Complete Idiot's Guide to Trigonometry now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.