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On this page we’ve put together some useful formulas for solving right triangles and a table of function values for the sine, cosine and tangent functions.
Right triangle Formulas
Table of Trigonometric Function Values
Right Triangle Formulas
The Pythagorean Theorem:
A² + O² = H²
Sin(x) = O/H
Cos(x) = A/H
Tan(x) = O/A
Inverse Trigonometric Functions
x = Ascsin[sin(x)]
x = Arccos[cos(x)]
x = Arctan[tan(x)]
Trigonometric Function Values
To calculate trigonometric function values, you’ll need to use a scientific calculator or a table of trigonometric function values. Scientific calculators are relatively inexpensive to buy and are a handy tool to have around the shop. Free scientific calculators can often be found by searching the Web. Below, you’ll find a good old fashioned table of trigonometric function values for the sine, cosine and tangent functions.
|Trigonometric Function Values|
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