Parallel Theorems

What is the value of x?

• 60

• 70

• 150

• 330

What is the value of c?

• 140

• 40

• 220

• 20

What is the value of b?

• 80

• 90

• 170

• 350

How can we describe these angles?

• Corresponding angles

• Alternate angles

• Interior angles

• Vertically opposite angles

Tags

CCSS.8.G.A.5

What is the size of angle x?

• 108

• 72

• 288

• 198

Tags

CCSS.8.G.A.5

How big is angle x?

• 138

• 180

• 32

• 42

Tags

CCSS.7.G.B.5

Given this diagram, what knowledge of angles should you use to solve for x?

• Corresponding angles are the same size

• Vertically opposite angles are the same size

• Interior angles add to 180

• Angles on a straight line add to 180

• Alternate angles are the same

Tags

CCSS.8.G.A.5

In the drawing, line l || m. What is true of angles 1 and 2 and why?

• They are supplementary by same side interior angles theorem.

• They are congruent by alternate interior angles theorem

• They are congruent by alternate exterior angles theorem.

• They are congruent by corresponding angles theorem.

Tags

CCSS.8.G.A.5

In the drawing, which pair of angles are alternate interior angles.

• 1 and 2

• 2 and 4

• 3 and 5

• 1 and 5

Tags

CCSS.8.G.A.5

Which theorem according to the drawing indicates lines CD and EF are parallel?

• Converse of Corresponding angles theorem

• Converse of Same side interior angles theorem

• Converse of Alternate exterior angles theorem

• Converse of Alternate interior angles theorem

Tags

CCSS.8.G.A.5