Trigonometry

1
Trigonometry
Terminology
Definitions
sine cosine tangent
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2
Triangle terminology
Opposite side
Adjacent side
Hypotenuse
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Terminology
Definitions
3
Opposite side the side opposite the
angle
angle
opposite
opposite
opposite
angle
angle
angle
opposite
Opposite side
Adjacent side
Hypotenuse
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Terminology
Definitions
4
Adjacent side the side beside the
angle
adjacent
angle
adjacent
angle
angle
adjacent
adjacent
angle
Opposite side
Adjacent side
Hypotenuse
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Terminology
Definitions
5
Hypotenuse the longest side
hypotenuse
hypotenuse
hypotenuse
hypotenuse
Opposite side
Adjacent side
Hypotenuse
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Terminology
Definitions
6
Definitions
B
c
a
A
90o
C
b
Tangent
Sine
Cosine
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Terminology
Definitions
7
Tangent of angle A
opposite adjacent
a b
B
tan(A)

c
a
tan(B)
A
90o
C
b
clear
Sine
Cosine
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Terminology
Definitions
8
Tangent of angle B
opposite adjacent
b a
B
tan(B)

c
a
tan(A)
A
90o
C
b
clear
Sine
Cosine
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Terminology
Definitions
9
Sine of angle A
a c
opposite hypotenuse
B
sin(A)

c
a
sin(B)
A
90o
C
b
Tangent
Cosine
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Terminology
Definitions
10
Sine of angle B
b c
opposite hypotenuse
B
sin(B)

c
a
sin(A)
A
90o
C
b
Tangent
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Cosine
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Terminology
Definitions
11
Cosine of angle A
b c
adjacent hypotenuse
B
cos(A)

c
a
cos(B)
A
90o
C
b
Tangent
Sine
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Terminology
Definitions
12
Cosine of angle B
a c
adjacent hypotenuse
B
cos(B)

c
a
cos(A)
A
90o
C
b
Tangent
Sine
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Terminology
Definitions