vocabulary
When two angles have the same size and shape they are ________
congruent
If angle A and angle B are vertical angles, and the measure of angle A is 79 degrees, what is the measure of angle B?
79 degrees
Angle B and angle C form a linear pair.
The measure of angle B is x+58, the measure of angle C is x+20.
Solve for X.
51
What is the formula for midpoint?
x + x divided by 2, y+y divided by 2
What is the formula for slope?
difference in y divided by difference in x
Two angles who's measures combine to equal 180
supplementary
If angle C and angle D form a linear pair, and the measure of angle C is 95 degrees, what is the measure of angle D?
85
Angle C and D are vertical angles.
The measure of angle C is 3x-7.
The measure of angle D is x + 115
Solve for x.
61
Find the midpoint of a line with the following end points: (8,7) and (-4,3)
(2,5)
Which letter stands for Slope in the slope intercept form equation:
Y=MX + B
M
Two angles who's measures combine to equal 90
complementary
If angle C and angle D are complementary angles, and angle C measures 73 degrees, what is the measure of angle D.
17
Angle B and D are complementary.
The measure of angle B is 3x + 9.
The measure of angle D is 2x - 4.
Solve for X.
17
Find the midpoint of a line with the following end points:
(-2, 0) and (-6, 0)
(-4,0)
Given the equation:
Y= 6x + 7, identify the slope
slope=6
two angles that share a common side
adjacent
Angle H is 27 degrees. Angle W is 153. Describe their relationship.
supplementary
The measure of angle K is 9x - 24.
Angle W and angle K are vertical angles.
Solve for x.
3
Find the midpoint of a line with the following end points:
(-10,-5) and (6,3)
(-2, -1)
If line A is parallel to line B and the equation for line B is y=3x + 7, what is the slope of line A?
3
________ angles are pairs of opposite, congruent angles formed when two straight lines intersect.
vertical angles
Angle D and angle F are vertical angles.
The measure of angle D is 2x + 4.
The measure of angle F is 4x -8.
Solve for X.
6
The measure of angle W is 6x + 15.
The measure of angle K is 9x - 24.
Angle W and angle K are vertical angles.
What is the measure of angle W?
33
Given the mid point of (2,5) and one end point of (-4,3), solve to find the other end point.
May be phrased as:
Line XW passes through a midpoint of Z.
X is at (-4,3) Z is at (2,5) Solve for W.
(8,7)
If line A is perpendicular to line B and the equation for line B is y= -1/2x + 6, what is the slope of line A?
2