Pythagorean Theorem
Special Right Triangles
Trig Ratios
More Trig Ratios
The Unit Circle
Unit Circle - Inverse
100
The equation for Pythagorean Theorem.
a2 + b2 = c2
100
The relationship between the legs of a 45-45-90 Triangle.
equal
100
The trig ratio of Cosine.
Adj
Hyp
100
The opposite trig ratio of cosine.
Secant (Sec)
100
Sin 60º
(sqrt 3)/2
100
Cos-1(-1) in radians and degrees
180º and
pi
200
The Pythagorean theorem only works with this.
right triangles
200
The equation to find the longer leg given the short leg in a 30-60-90 right triangle.
Short Leg => Long Leg *
sqrt 3
200
Trig ratios are used for this.
To solve for a missing side or angle.
200
Opposite trig function of sine?
Cosecant (csc)
200
Cos 225º
(-sqrt2)/2
200
sin^-1 ((-sqrt2)/2)
in degrees and radians
-45º and
(-pi)/4
300
The hypotenuse length if our legs are equal to 6 and 8.
10
300
The equation to find the hypotenuse in 45-45-90 if given the leg.
Leg => Hyp *
sqrt 2
300
This is what is in the parentheses of a trig ratio.
Theta (𝞱) (angle measurement)
300
The trig ratio that is equal to Sin(30).
Cos(60)
300
cos ((3pi)/4)
(-sqrt2)/2
300
tan-1 (1) in degrees and radians
45º and
pi/4
400
Find the third side of a right triangle that has a hypotenuse of 20 and a leg of 16.
12
400
What is the hypotenuse of a triangle with legs 11 and 11.
11 sqrt 2
400
Trig ratio that uses Opposite and Hypotenuse.
Sine
400
What is the sine of angle A?
24
25
400
Tan 330º
(-sqrt3)/3
400
Use a calculator to evaluate Cos-1 (0.24) in both radians and degrees.
76.11º and 1.33 rad
500
What is the length of bd?
12
500
The hypotenuse of a 30-60-90 triangle if your shorter leg is 47.
94
500
The phrase (mnemonic) we use to remember our Trig Ratios.
SOH CAH TOA
500
If Sin(A) = 12/13 what is Cos (A)?
5/13
500
Tan ((4pi)/3)
sqrt3
500
tan^-1 (sqrt3/3)
in both radians and degrees
30º and
pi/6