Line and Angle Measurement

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.

What is the definition of parallel lines?

• Lines that intersect to form right angles.

• Lines that intersect.

• Lines that never intersect.

• Lines that are straight.

What is the definition of perpendicular lines?

• Lines that never intersect.

• Lines that intersect to form right angles.

• Lines that intersect at any angle.

• Lines that are straight.

What is this a picture of?

• Acute angle

• Obtuse angle

• Parallel lines

• Perpendicular lines

What is this a picture of?

• Right angle

• Parallel lines

• Acute angle

• Obtuse angle

What is this a picture of?

• Acute angle

• Right angle

• Perpendicular lines

• Obtuse angle

What is this a picture of?

• Perpendicular lines

• Parallel lines

• Acute angle

• Obtuse angle

What is this a picture of?

• Acute angle

• Obtuse angle

• Right angle

• Parallel lines