Special Right Triangles
Side, Side and 2√side is the relationship of the sides of this special right triangle.
What is a 45-45-90 triangle?
This is called the Pythagorean Theorem. It is only for right triangles.
What is a2+b2=c2?
The island sounding word to help us remember the trig identities.
What is Soh-Cah-Toa?
Sin A over a is equal to Sin B over this.
What is little b?
What is Cosmo?
What is 2?
For all triangles, this must be true.
What is the leg + leg > Hypotenuse?
This trig identity uses opposite over hypotenuse.
What is Sine?
The sides of a triangle are labeled with lower case letters and the angles are labeled with this.
What are capital letters?
This looks like a trigonometry problem, but really we are just adding all the angles to equal 180 degrees.
What is sin (something with an x) = Cos (something with an x)?
In a 45-45-90 triangle, this many sides are equal.
What is 2?
This is the type of triangle when c2 < a2+b2.
What is acute?
This Trig Identity uses opposite over hypotenuse.
What is Tangent?
This completes the formula for
c2 = a2+b2 -2abCos__.
What is Capital C?
Pythagoras lived in 570 BC but these people were using the c2 = a2+b2 equation for right triangles 1000 years earlier in 1550 BC.
Who are the Babylonians? (Egyptians)
In a 30-60-90 triangle, this is the side that is multiplied by √3.
What is the long leg?
or What is the leg opposite the 60 degrees?
This is the type of triangle when c2 = a2+b2.
What is a right triangle?
This is how you remove the sine from sin(x).
What is inverse sin?
or sin-1
What are Law Sines and Law of Cosines?
He often has his dog on camera with him.
Who is Will Turner?
This is what Hall, Able, and Nelson all have in common.
What is their first name is Matt?
This is the special Law that works with the Pythagorean Thoerem for non-right triangles.
What is Law of Cosines?
This sides of the triangle, opposite is across from, and adjacent is next to this.
What is the angle?
Given a triangle with side a = 3 and angle A= 40 and side b = 7, to find angle B you would use this law to set up your equation.
What is law of sines?
In mathematics, we often use letters from this country's alphabet.
What is Greece?