Measures of Angles
This is the conversion factor for degrees to radians.
What is pi/180?
This formula is s=radius x theta(radians)
What is circular arc formula?
This is the ratio for sin theta.
What is opposite/hypotenuse?
This is a circle on the Cartesian Plane that has a radius of 1 unit and is centered at the origin (0, 0)
What is the unit circle?
This identity allows you to obtain one of cos theta or sin theta if you have the other.
What is the Pythagorean Identity?
45 degrees is the equivalent of this radians.
What is pi/4 radians?
This is the circular sector formula using radians.
What is A=1/2 x r^2 x theta
One uses this to find an angle of a given trigonometric ratio.
What is the inverse of the trigonometric ratio.
This is the period of the tangent function.
What is pi?
This theorem states that the cosine of a negative theta equals the positive cosine theta (an even function).
What is the Opposites Theorem.
1/2 revolution clockwise equals this many degrees.
What is 180 degrees?
This is the circular arc formula for degrees.
What is s= theta/360 x 2 x pi x r
This is the acronym to remember the trigonometric ratios.
What is "SOHCAHTOA?"
The graph of this circular function crosses the origin.
What is the sine function?
This theorem states that for every theta, sin (pi/2 -theta) = cos theta
What is the complements theorem?
This number of radians equals 30 degrees.
What is pi/6?
What is twinkle twinkle little star, circumference is 2 pi r?
Trigonometric ratios are used with this kind of triangle.
What is a right triangle?
In this quadrant, cosine is negative, sine is positive, and tangent is negative.
What is Quadrant II?
The Law of Cosines is associated with these triangle congruence conditions.
What are SAS and SSS conditions?
1/6 of a revolution is this many radians.
What is pi/3?
This is the circular sector formula in degrees.
What is A= theta/360 x pi r^2?
This is the ratio of the tangent function.
What is opposite/adjacent?
This theorem states that for every theta, sin (pi - theta)= - sin theta.
What is the Supplements Theorem?
This triangle condition is associated with this Law and is possibly ambiguous.
What is SSA and Law of Sines?