Angles and Types of Lines

What is this a picture of?

• Right angle

• Parallel lines

• Acute angle

• Obtuse angle

less than 90 degrees

• acute angle

• obtuse angle

• right angle

• straight angle

greater than 90 degrees

• acute angle

• obtuse angle

• right angle

• straight angle

• acute angle

• obtuse angle

• right angle

• straight angle

lines that will never cross

• parallel

• perpendicular

• intersecting

• symmetrical

lines that cross at right angles

• parallel

• perpendicular

• intersecting

• symmetrical

Which type of angle is pictured?

• Acute

• Right

• Obtuse

• Straight

An angle is 90 degrees is...

• a right angle

• an acute angle

• an obtuse angle

An angle is less than 90 degrees is...

• a right angle

• an obtuse angle

• an acute angle

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.