Trigonometry Of The Right Triangle Worksheet
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10Trigonometry of the Right Triangle - 1
In your study of trigonometry of the right triangle, you will discover ways in which the similarity of triangles will provide
additional methods for measuring segments and angles indirectly.
G
Three right triangles are drawn to coincide
at vertex A. Since each triangle contains a
right angle as well as
A
, we know that all
E
three triangles are similar by
.
AA AA
C
ABC
ADE
AFG
Also, since corresponding sides of similar triangles
are in proportion, we can say:
A
F
D
B
Let’s recall our Trigonometric Ratios….. Remember “SOH CAH TOA”
Sine
Cosine
Tangent
sin
A
cos A
tan A
Reciprocal Functions
Cosecant
Secant
Cotangent
csc A
sec A
cot
A
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