1/2
Given that a//b, which of these angles are supplementary?

A. 5 and 8 B. 1 and 5
C. 2 and 8 D. 6 and 3
C. 2 and 8
Which would prove r//s?

A. mangle8=mangle3
B. mangle8=mangle6
C. mangle8+mangle6=180
D. mangle8=mangle9
B.
mangle8=mangle6
Given r//s, what is the value of x?

x = 43
What is the slope of AD?

-2
What is the measure of the indicated angle?

107 degrees
John nailed a piece of wood across two beams as shown. Which angles need to be congruent to show the beams are parallel?
*Any valid answer will be accepted*

angle1=angle5
OR
angle2=angle6
OR
angle2=angle3
OR
angle1=angle4
Find the value of x.

x = 11
Line t has coordinates (0,6) and (5,0). What is the slope of a line parallel to line t?
-6/5
What is the measure of the indicated angle?

61 degrees
Which diagram proves a//b?

B
Find the value of x.

x = 8
Line j contains the points (-8, 5) and (8, -3). What would be the slope of a line perpendicular to line j?
2
Given a//b and c//d, what is the value of x?

133 degrees
Which lines are parallel in the given diagram?

p//q and r//s
Given that m//n//p, find the mangle10

mangle7=5x-20
mangle10=2x+70
mangle10=130
degrees
Given
AB: A(-1,3) B(0,5)
CD: C(2, 1) D(6, -1)
Are AB and CD parallel, perpendicular, or neither?
Perpendicular
In the figure, g//h and e//f. Which angle listed is not congruent to angle 5?

A. angle3 B.angle9
C. angle8 D.angle16
D.
angle16
Select all that would prove c//d.

A. mangle11+mangle12=180
B. mangle2+mangle6=180
F. mangle11=mangle13
H. mangle1=mangle6
B.
mangle2+mangle6=180
H.
mangle1=mangle6
Find the measure of the indicated angle.

55 degrees