Lines and Angles

What kind of angle is formed by perpendicular lines?

• acute

• obtuse

• right

• straight

What is the measure of the angle shown?

• The angle is less than ​90°. The angle is acute.

• The angle is more than ​90°. The angle is acute.

• 
  The angle is less than ​90°. The angle is obtuse.

• 
  The angle is more than ​90°. The angle is obtuse.

Which is TRUE about intersecting lines?

• They are never parallel

• They are always parallel

• They are never perpendicular

• They are always perpendicular

Which BEST describes this angle?

• acute

• obtuse

• right

• straight

Which BEST describes this angle?

• acute

• obtuse

• right

• straight

Which figure has a right angle?

• 
• 
• 
• 

What does the image show?

• a line
• a line segment
• a ray
• a point

What does the image show?
(The whole thing, not just the points)

• a ray
• a line
• parallel lines
• line segment

What does the image show? 
(The whole thing, not just the points)

• a ray
• a line
• a line segment
• a point

What does this image show?

• dot
• point
• circle
• angle