Download Key Vocabulary: ∙ Secant ∙ Cosecant ∙ Cotangent ∙ Initial side

Learning Guide
Algebra II~ Trigonometric Ratios & Functions
– Unit 13
Learning Targets:
I can…
DATE
I can find the lengths of a right
triangle by using trigonometric
functions. MATH.AII.11.63
I can define angle measure in
radians by using the unit circle.
MATH.AII.11.64
I can evaluate trigonometric
functions of any angle by using
the unit circle.
MATH.AII.11.65
I can find angle measures by
using inverse functions.
Essential Questions:
 What is an angle of rotation, and
how is it measured?
 How can the sine, cosine, and
tangent functions be defined using
the unit circle?
 How can you use a given value of
one of the trigonometric functions
to calculate the values of the other
functions?
MATH.AII.11.66
I can solve triangles by using the
Laws of Sines and Cosines.
MATH.AII.11.67
Key Vocabulary:
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Secant
Cosecant
Cotangent
Initial side
Terminal side
Standard position
Coterminal
Unit Circle
Quadrantal circle
Reference angle
Inverse sine
Inverse cosine
Inverse tangent
Law of Sines
Law of laws