What is a Trigonometric Ratio?
A ratio of two sides of a right triangle.
What is Sine?
The ratio of the lengths of the leg opposite the angle and the hypotenuse.
What is Cosine?
The ratio of the lengths of the adjacent leg and the hypotenuse.
What is Tangent?
The ratio of the lengths of the opposite leg and the adjacent leg.
How do you solve for missing measures?
You use Sin/Cosine/Tangent and any angles/sides you are given.
What are the Inverse Trigonometric Functions?
If sin A=x, then (sin^-1)x=A
If cos A=x, then (cos^-1)x=A
If tan A=x, then (tan^-1)x=A
What is the Distance Formula?
z=sqrt(((x2-x1)^2)+(y2-y1)^2)))