In this module, you can study how to use trig ratios (sine, cosine and tangent) to find an unknown side length in a right triangle.
To find the unknown side length, you have to use sine, cosine or tangent.
The buttons on your calculator are: sin cos tan
A 'TOA' example from the second video:
On a calculator, type: 40 X tan ( 24 ) =
The answer you should get is: 17.8 m
Study and practice
