Lines and Angles in Shapes

What is the term for angles that add up to 90 degrees?

• Supplementary angles

• Complementary angles

• Adjacent angles

• Vertical angles

What is the relationship between the angles in a linear pair?

• They are complementary angles.

• They are supplementary angles.

• They are vertical angles.

• They are adjacent angles.

What is an angle that forms a square corner called?

• A right angle.

• An acute angle.

• An obtuse angle.

• A reflex angle.

What is the sum of the interior angles of a triangle?

• 90 degrees

• 180 degrees

• 360 degrees

• 120 degrees

What is the term for a straight line that touches a curve at one point?

• Tangent

• Chord

• Secant

• Normal

What is the term for angles that add up to 180 degrees?

• Complementary angles

• Adjacent angles

• Supplementary angles

• Vertical angles

What are lines that never intersect and are always the same distance apart called?

• Intersecting lines

• Perpendicular lines

• Parallel lines

• Curved lines

What type of angle measures exactly 90 degrees?

• Acute angle

• Obtuse angle

• Right angle

• Straight angle

What type of angle measures less than 90 degrees?

• Acute angle

• Obtuse angle

• Right angle

• Straight angle

What do you call lines that intersect at a right angle?

• Parallel lines

• Perpendicular lines

• Intersecting lines

• Skew lines