Proving Angles Congruent

• Alternate Interior Angles

• Alternate Exterior Angles

• Same-side Interior Angles

• Corresponding Angles

• None of these

Tags

CCSS.8.G.A.5

Vertical angles are always

• acute

• total 180 degrees

• congruent (equal measures)

• adjacent angles

Tags

CCSS.7.G.B.5

Given the following two parallel lines cut by a transversal. Which pair of angles represents alternate interior angles?

Tags

CCSS.8.G.A.5

Given the following two parallel lines that have been cut by a transversal. \angle1 and which angle make up Alternate Interior angles?

Tags

CCSS.8.G.A.5

True or False?

< A is congruent to < B' ?

• True

• False

Tags

CCSS.8.G.A.2

Angles with the same measure are called ________ angles.

• complementary

• congruent

• acute

• obtuse

Tags

CCSS.8.G.A.2

When you see two angles with the same number of hatch marks, what do we know about those angles?

• They combine to equal 90 degrees (complementary)

• They are equal to each other (congruent)

• They combine to equal 180 degrees (supplementary)

• They are next to each other and share both a line and vertex (adjacent)

Tags

CCSS.7.G.B.5

Which Angles are congruent?

Tags

CCSS.8.G.A.5

The measures of two angles are (4x + 39)° and (16x – 12)°. What is the value of x that will make the two angles congruent?

Mathematical Equivalence

OFF

Tags

8.8C

The measures of two angles are (6x + 36)° and (14x - 14)°. What is the value of x if these angles are congruent?

Mathematical Equivalence

ON

Tags

CCSS.7.G.B.5