What is the phrase we use to help us remember our Trigonometric Ratios?
SohCahToa
What does it mean when two shapes are similar?
same Proportions, different sizes
What are the two things you need to describe a Dilation?
Scale Factor and Center
How do we write out Pythagorean Theorem?
What is true about the slopes of perpendicular lines?
They are opposite reciprocals
What does the C in Cah stand for?
Cosine
What are two of the three similarity Theorems
AA Theorem, SSS Theorem, SAS Theorem
I multiply to corresponding sides to help your pre-image become the image. What am I?
Scale Factor
What are the Two special right triangles we know about?
45-45-90 and 30-60-90
Parallel lines have this in reference to their slope.
What is the same slope?
What ratio is equal to
(opp)/(adj)
Tangent (or Tan)
Corresponding angles in similar triangles are what?
Congruent
What do we draw to typically help us find the Center?
Connecting lines
What does x equal? (remember your units)
6 cm
A Parallel line has been intersected by a transversal line.
1) These angles are supplementary.
2) These angles are congruent
1) What are consecutive interior angles?
2) What is alternate interior angles?
Which Trigonometric Ratio should I use to solve for Angle B?
Cosine (Cos)
Are these two triangles similar? How do you know?
yes, AA Theorem.
Which point is the Center?
Point B
45-45-90 triangles are half of which shape?
Square
This is the sum of the measure of ALL interior angles of a Triangle.
What is 180 Degrees
What is the hypotenuse?
The longest side of a right triangle.
Are these two triangles similar? How do you know?
yes, SAS theorem.
What's the scale factor between these two triangles?
3 or 1/3
30-60-90 Right Triangles are half of which shape?
Equilateral Triangles
What are the 4 ways to prove two triangles are congruent?
SAS, SSS, ASA, AAS