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Trigonometry Function Definitions
30-60-90
45-45-90
Trigonometry Identities
Unit Circle
100
The ratio of variables equal to Sine.
What is y/r?
100
The length of the longest side of a 30-60-90 triangle.
What is the two?
100
Two the square root of two.
What is the length of the two legs of a 45-45-90 triangle?
100
1/csc x.
What is sin x?
100
the square root of three / 2
What is the x coordinate for 30 degrees?
200
The ratio of variables equal to Cosine.
What is x/r?
200
The length of the middle side of a 30-60-90 triangle.
What is the square root of 3?
200
One.
What is the length of the longest side of a 45-45-90 triangle?
200
1/cos x.
What is sec x?
200
one half.
What is x coordinate for 60 degrees?
300
The ratio of variables equal to Tangent.
What is y/x?
300
The shortest length of a 30-60-90 triangle.
What is one?
300
1/tan x.
What is cot x?
300
pi / 4.
What is the radian measure for 45 degrees?
400
The ratio of variables equal to Cotangent.
What is x/y?
400
List the sides of a 30-60-90 triangle from shortest to longest.
What is one, the square root of three and two?
400
The Pythagorean Theorem.
What is A squared + B squared = C squared?
400
csc x.
What is 1/sin x?
400
negative one half.
What is x coordinate for 120 degrees?
500
The ratio of variables equal to Cosecant.
What is r/y?
500
This is the formula for finding the sides of a 30-60-90 triangle.
What is one squared + the square root of three squared = two squared?
500
two the square root of two squared + two the square root of two squared = one.
What is formula for finding the sides of a 45-45-90?
500
sin x/cos x
What is tan x?
500
3 pi / 2.
What is radian measure for 270 degrees?