Types of Angles

Identify the type of angle shown....

• Acute

• Obtuse

• Reflex

• Right Angle

Identify the type of angle shown....

• Acute

• Obtuse

• Reflex

• Right Angle

Main Street and Walnut Street make a _______ angle.

• Acute

• Obtuse

• Right

• Straight

What is the measurement of a right angle?

• 70

• 80

• 90

• 180

What is the definition of a right angle?

• An angle that is open less than a right angle and has a measure less than 90 degrees.

• An angle that forms a square corner and has a measure of 90 degrees.

• An angle that is open more than a right angle but less than a straight angle. This angle measures between 90 and 180 degrees.

• Lines that never intersect.

What is the definition of an acute angle?

• Lines that intersect to form right angles.

• An angle that is open more than a right angle but less than a straight angle. This angle measures between 90 and 180 degrees.

• An angle that forms a square corner and has a measure of 90 degrees.

• An angle that is open less than a right angle and has a measure less than 90 degrees.

What is the definition of an obtuse angle?

• An angle that is open more than a right angle but less than a straight angle. This angle measures between 90 and 180 degrees.

• An angle that forms a square corner and has a measure of 90 degrees.

• An angle that is open less than a right angle and has a measure less than 90 degrees.

• Lines that intersect to form right angles.

Define Straight Angle

• Less than 90

• Exactly 90

• Greater than 90 and less than 180

• Exactly 180

What could be the measurement of an obtuse angle?

• 90

• 20

• 130

• 89

Which could be the measurement of an acute angle?

• 92

• 88

• 180

• 90