Because I'm Always Right!
A type of triangle that has a 90-degree angle.
What is a right triangle?
The sum of angle measure in any type of triangle.
What is 180 degrees.
This circle has a radius of 1.
What is a unit circle?
Also known as the isosceles right triangle.
What is the 45-45-90-degree triangle?
sin x/cos x can be written as this.
What is tan x?
In a right triangle, I am the side opposite to the right angle.
What is hypotenuse?
90 degrees, 180 degrees, 270 degrees, and 360 degrees are called these.
What are quadrantal angles.
One full clockwise revolution on the unit circle is equal to this.
What is negative 360 degrees or negative 2 pi?
Also known as the scalene right triangle.
What is the 30-60-90-degree triangle?
In these quadrants, cosine theta is always positive.
What are Quadrants I & IV?
This is the formula of the Pythagorean Theorem.
What is a2 + b2 = c2?
180 degrees is the same as this in radian measure.
What is pi?
sin (-45 degrees) is this.
What is negative square root of 2 over 2?
This is the cofunction of sec 20 degrees.
What is csc 70 degrees?
This is the quotient identity for cot x.
What is cos x/sin x?
Given a hypotenuse of 10 and a side length of 8, this third side length makes it a Pythagorean triple.
What is 6?
This is 3 AND 1/2 clockwise revolution in radians.
What is negative 7 pi?
tan pi/2 is this.
What is undefined?
The 45-45-90-degree angle has a side length of 10 inches. The measure of the hypotenuse is this.
What is 10 square root of 2 inches?
Reciprocal identity for 1/cos (x)
What is sec (x)?
This is the length of the longer leg of a 30-60-90-degree triangle having a hypotenuse of 12 inches.
This is the angle measure of 3 and 1/2 counterclockwise revolution.
What is 1,260 degrees?
cot (-13pi/2) is this.
What is 0?
This is the cofunction of cot 40 degrees.
What is tan 50 degrees?
Reciprocal identity for sin (x)
What is 1/csc (x)?