Calculated Industries 4090 - Manual (Page 102)

U
SER
’
S
G
UIDE
— 101
The Sine of an angle is the ratio of the opposite side over the
Hypotenuse:
The Cosine of an angle is the ratio of the adjacent side over the
Hypotenuse:
The Tangent of an angle is the ratio of the opposite side over the
adjacent side:
Tangent Tan =
Opposite
Adjacent
tan A =
a
b c
a
b
A
Cosine Cos =
Adjacent
Hypotenuse
cos A =
b
c
c
a
b
A
Sine Sin =
Opposite
Hypotenuse
sin A =
a
c
c
a
b
A
APPENDIX A — TRIGONOMETRY FORMULAS