# Trigonometry

A simple, easy to follow sheet on how to do trigonometry.

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- Created by: Becka Sharp
- Created on: 03-11-14 14:54

First 147 words of the document:

Trigonometry Revision Notes

A- Adjacent

O- Opposite

H- Hypotenuse

S- Sin

C- Cos

T- Tan

Step 1:- Label the Sides

Step 2:- Cross out the unwanted side

Step 3:- Work out which formula to use

Step 4:- Write out the three letters of the triangle from the formula you are using e.g. C= A= H=

Step 5:- Decide which of the three things you are looking for

Step 6:- Re arrange the formula to find out the value of what you are looking for e.g. A =C x H or C=

A

H

Step 7:- Calculate the value to the nearest degree of accuracy

When you need to find an angle you must press the SHIFT button on your calculator at the

end of the calculation.

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