Angles Circles 4.3 and 4.5 Mystery Trigonometry
What is a right angle
An angle of 90 degrees.
What is a unit circle
Circle unit with radius.
What is amplitude
Half the distance between the maximum in the minimum values of a sinusoid function.
What is angles
The space in degrees between two intersecting line
What is period
Portion of time
What is an acute angle
An angle smaller than 90 degrees
What is a centeral angle
Arc length of a circle of radius one.
What is phase shift
The difference between the horizontal position of a function in that otherwise similar sinusoid function
What is initial side
X axis of an angle
What is
Two angles in standard position that have the same terminal side
What is an obtuse angle
An angle greater than 90 degrees and less then 180 degrees
What is 1 radian.
The angle subtended at the center of a circle by an arc that is equal in length to the radius
What is a mathmatical curve that desrcibes a smooth periodic oscillation
Sinusoidal graph
What is linear speed
Distance traveled per unit of time
What is trigonometric functions
Equations involving trig functions of an angle that are true for any value of that angle
What is a straight angle
An angle of 180 degrees
What is radian measure
Centeral angle that intercepts of an arc equal to the radius if the circle.
What is angle of depression
Anglw between the horizontal line of a sight and the line of sight down the object
What is occuring at intervals
Periodic
What is pythagorean identities
A trig identity expressing the pythagorean theorem in terms of trig functions
What is reference angle
The positive acute angle that can represent an angle of any measure
What is co functions
A trigonometric function whose value for the complement of an angle is equal to the value of a trigonometric function of an angle itself
What is terminal side
Y axis of an angle
What is trigonometry
Mathematics dealing with the relations of the sides and angles of triangles

# Trigonometry

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