Angles, Acute, Obtuse, Straight, Parallel Lines, Perpendicular Lines, Rays, Line Segments, and Points

What are these?

• Lines

• Line Segments

• Points

• Rays

Line segment AB and line segment CD are...

• parallel

• perdendicular

• intersecting

• opposite

What type of angle is this?

• reflex angle

• right angle

• acute angle

• obtuse angle

What kind of angle is this?

• acute angle

• right angle

• obtuse angle

• straight sngle

What type of angle is this? 

• acute

• obtuse

• right

What is the best term to describe this image?

• intersecting lines

• perpendicular lines

• parallel lines

• arrows

Perpendicular lines...

• will never intersect

• intersect to form right angles

• are curved lines

Angles that have a measure less than 90 degrees are called    _______ ________.

• acute angles

• obtuse angles

• right angles

• straight angles

A straight angle is....

• 90⁰

• 60⁰

• 30⁰

• 180⁰

Two rays that have a common endpoint.

• Ray

• Angle

• Line

• Point