Geometry Fall Review

Find the value of x.

• 85

• 65

• 115

• 105

Answer explanation

Vertical angles are congruent.

AB has endpoints A (-4, 4) and B (6, -5). In what quadrant is the midpoint?

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

Answer explanation

Using the midpoint formula, the midpoint of AB is (1, -0.5).

Which name best describes the line?

• 
• 
• 
• 

Answer explanation

The symbol for a line has arrows on both ends, because it goes on forever in two directions.

Which of the following does NOT name the angle correctly?

• ∠ Q

• ∠ QRS

• ∠ 1

• ∠ RQS

Answer explanation

The vertex of the angle must be in the middle when naming an angle.

What is the distance between (1, 3) and (7, 6) ?

• 10.817

• 12.042

• 8.544

• 6.708

Answer explanation

If the m∠ RMP = 87°, what is the measure of ∠ QMS?

• 63°

• 13°

• 87°

• 93°

Answer explanation

∠ RMP and ∠ QMS are vertical angles. Vertical angles are congruent.

What is the intersection of two lines? Hint: Draw a picture!

• an angle

• a plane

• a point

• a line

Answer explanation

What are two angles whose sum is 90° called?

• supplementary angles

• vertical angles

• obtuse angles

• complementary angles

Answer explanation

Complementary angles are two angles whose sum is 90°

What are two angles whose sum is 180° called?

• supplementary angles

• vertical angles

• obtuse angles

• complementary angles

Answer explanation

Supplementary angles are two angles whose sum is 180°

If m∠ADB =21° and m∠BDC = 63°, what is the measure of ∠ ADC? 

• 21°

• 42°

• 63°

• 84°

Answer explanation