Lines and Angles

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

What kind of angle is formed by perpendicular lines?

• acute

• obtuse

• right

• straight

Which BEST describes this angle?

• acute

• obtuse

• right

• straight

What kind of angle is this?

• straight

• acute

• right

• obstuse

What type of lines intersect to form a right angle?

• Parallel lines

• Perpendicular lines

• Intersecting lines

• Skew lines

What type of angle is this? 

• acute

• obtuse

• right

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

Which tool is used to measure angles?

• Ruler

• Compass

• Protractor

• Calculator

What type of angle is less than 90 degrees?

• Right angle

• Acute angle

• Obtuse angle

• Straight angle