Chapter 2 Test Review

Practice 1a: Name a pair of complementary angles

If ∠A and ∠B are supplementary, and the measure of ∠A is 120°, what is the measure of ∠B?

Practice 1c: Name a pair of vertical angles

Find the value of x.

• 15

• 16

• 18

• 19

Find the value of x

• -5
• 28
• 19
• -3

Vertical angles are always

• acute
• total 180 degrees
• congruent (equal measures)
• adjacent angles

• 2x-6=7x+4
• 2x-6+7x+4=90
• 2x-6+7x+4=180
• 2x-6+7x+4=360

• 2x-6=7x+4
• 2x-6+7x+4=90
• 2x-6+7x+4=180
• 2x-6+7x+4=360

Find the value of x.

• 14
• 60
• 35
• 180

If two angles form a linear pair, then they are supplementary.

• Linear Pair Theorem

• Vertical Angles Theorem

• Congruent Supplements Theorem

• Pythagorean Theorem