Basics (Unit 1)
What do collinear points lie on?
A line
A slide is called what transformation?
Translation
What does SSS stand for?
Side-Side-SIde
What does a scale factor > 1 mean?
Enlargement
Formula for the area of a rectangle?
l * w
What is the midpoint of (2, 4) and (6, 8)
(4, 6)
A flip is called what transformation?
Reflection
What type of triangle uses HL?
Right triangle
What proves triangle similarity
AA (Angle-Angle)
Area of a circle formula
pi*r2
What do supplementary angles add up to?
180 degrees
What point do rotations happen around?
The origin (or a center point)
Do AAA triangles prove congruence?
No
What is sin(theta)?
Opposite/Hypotenuse
Volume formula (rectangular prism)
l * w * h
Solve: 3x + 2 + (x + 4) = 18
x = 3
Reflect (3, 5) over the y-axis
(-3, 5)
If two sides and the included angle match, which theorem applies?
SAS (Side-Angle-Side)
Find hypotenuse: 6, 8
Sqrt(6^2 + 8^2)
10
Distance from (0, 0) to (3, 4)
Sqrt(32+42)
5
Name the pair: angles opposite each other when lines intersect
Vertical angles
If two lines are cut by a transversal, what angles are equal?
Corresponding angles (also alt. interior acceptable)
If triangles are congruent, what matches?
All corresponding sides and angles?
Solve: tan(theta) = 6/3
2
Surface area of cube (side 3)
Formula: 6s2
54