Microsoft Office Tutorials and References

In Depth Information

**Getting an Angle on Trigonometry**

Getting an Angle on Trigonometry

Did you think Excel was not up to snuff to provide some tricks for

trigonometry? Then think again. Who can resist playing around with such exciting

things like cosines and tangents? All right, I admit this is not for everyone,

but here are the trig functions nonetheless. Besides, even if the concepts are

difficult, you can always throw around the terms at a party and be recognized

as the brainiest person there.

Three basic trigonometry functions

The sine, cosine, and tangent of an angle are likely the most used values in

trigonometry calculations. They provide answers about the relationships of a

triangle’s angles to the sides of the triangle. (See how I boiled down the bulk

of trigonometry into a single sentence!)

Figure 8-10 shows a handful of angles in Column A, and their corresponding

sine, cosine, and tangent values, respectively, in Columns B, C, and D.

Figure 8-10:

Using

SIN, COS,

and TAN

Functions.

The SIN, COS, and TAN functions take just the single argument of a number

(the angle) and return the converted values. The functions look like this if the

angles are in radians:

=SIN(angle)

=COS(angle)

=TAN(angle)