Angles – Test 2

What is the measure of a right angle?

• 180°

• 90°

• 45°

• 60°

Which of the following is an acute angle?

• 120°

• 100°

• 90°

• 45°

Which angle is greater than a right angle but less than a straight angle?

• Acute angle

• Obtuse angle

• Reflex angle

• Right angle

What is the measure of a straight angle?

• 90°

• 120°

• 180°

• 360°

What do we call two angles that add up to 90 degrees?

• Complementary angles

• Supplementary angles

• Vertical angles

• Reflex angles

What do we call two angles that add up to 180 degrees?

• Adjacent angles

• Complementary angles

What type of angle is exactly 90 degrees?

• Acute

• Obtuse

• Right

• Reflex

If two angles are across from each other when two lines cross, what are they called?

• Complementary

• Adjacent

• Vertical

• Alternate

Which of these angles is a reflex angle?

• 30°

• 75°

• 150°

• 270°

What kind of angles are 60° and 120° in relation to each other?

• Complementary

• Vertical

• Supplementary

• Congruent