Complementary and Supplementary
Two angles that sum to 90 degrees are called this name.
Complementary angles
BONUS 50: Give an example of two complementary angles.
What is the main difference between a line segment and ray?
Rays extend forever in one direction, segments have a start and end.
BONUS 50: Which one can be measured?
The symbol for parallel, that is hidden in the word
What is the symbol for perpendicular lines?
T (but upside down)
True or False: A point with a negative x-coordinate will always be on the right side of a coordinate plane.
False
Two angles that sum to 180 degrees
BONUS 50: Give an example of two supplementary angles.
What is the difference between a midpoint and bisector?
A midpoint is a point that splits a segment in half.
A bisector is a line, ray, or segment that splits something in half.
BONUS 50: What are two types of bisectors?
True or False: Corresponding angles are angles on two parallel lines who have matching positions.
TRUE
BONUS 50: Corresponding angles are _________
Two perpendicular lines form ________________
What are the names for the two lines that cross at the origin?
BONUS 50: Which axis is vertical?
True or False: A 41 degree angle and a 49 degree angle are supplementary.
False
BONUS 50: What kind of angles are they?
What is the name for a line that crosses over two or more other lines? Usually, this is over two parallel lines.
A transversal
BONUS 50: What two words does transversal translate into?
They must NEVER intersect, or the distance between them must always be the same.
True or False: Perpendicular lines may form obtuse or acute angles.
FALSE
BONUS 50: Why is this false?
What are the coordinates of the point 3 units to the right of the origin and 2 units up?
(3,2)
BONUS 50: What would be the coordinates of a point in the opposite directions?
True or False: Supplementary angles can always form a straight line.
True
What is the complement to 48 degrees?
42 degrees
BONUS 50: What is the supplement to 48?
Same-side interior angles, or same-side exterior angles, both have what property?
They are supplementary
Two lines are perpendicular. One angle created is represented by 3x. What is the value of x?
x = 30
Describe how to plot the point (–2, –5) on the coordinate plane.
Hint: Give me directions
Start at the origin, go left 2 units, down 5 units
Angle A = 2x+1
Angle B = 8x+39
If angles A and B are supplementary, find the value of x.
x = 14
BONUS 50: Find Angle B
Angle A = 4x+12
Angle B = 4x+8
Angle A is the supplement to Angle B. Find x.
x = 20
BONUS 50: Find measure of Angle A
Alternate interior angles, or alternate exterior angles, both have what property?
They are congruent, or they are always equal.
Perpendicular lines are one of the most applicable ideas in mathematics: why?
Our world is built with 90 degree angles. Everything around us that has a corner, sharp turn, or design, usually has some relationship with perpendicular lines.
Which point is farther from the origin: (4, 0) or (0,–5)?
(0,-5)