What is trigonometry?
An examination of the properties of a triangle, the trigonometric functions as well as the
application of such function.
Consider the following triangle:
4 x
3
Solve for X
Well that’s pretty simple , Theroem of Pythagoras …correct?
a2 +b2=c2
16+9=25
25=C2
5=C=X
Questions to ask yourself.
What happens if we remove 1 side from the triangle ? If so can we still solve for x?
, INTRODUCTION TO TRIGONOMETRY RATIOS
RATIOS:
• SIN
• COS
• TAN
SIN
4 5
3