Intro Geometry Vocabulary

The definition of perpendicular is...

• The point on a segment that divides it into two congruent segments

• Segment, line, or plane that intersects a segment at its midpoint

• Line, segment, or ray that is perpendicular to a segment at its midpoint

• Two lines that intersect at a 90 degree angle (right angle)

The definition of midpoint is...

• The point on a segment that divides it into two congruent segments

• Segment, line, or plane that intersects a segment at its midpoint

• Line, segment, or ray that is perpendicular to a segment at its midpoint

• Two lines that intersect at a 90 degree angle (right angle)

The definition of perpendicular bisector is...

• The point on a segment that divides it into two congruent segments

• Segment, line, or plane that intersects a segment at its midpoint

• Line, segment, or ray that is perpendicular to a segment at its midpoint

• Two lines that intersect at a 90 degree angle (right angle)

The definition of segment bisector is...

• The point on a segment that divides it into two congruent segments

• Segment, line, or plane that intersects a segment at its midpoint

• Line, segment, or ray that is perpendicular to a segment at its midpoint

• Two lines that intersect at a 90 degree angle (right angle)

Definition of parallel is...

• Two coplanar lines that never intersect

• Intersection of two rays at a common endpoint

• Angle with degree measure of 90

• Common endpoint of an angle, intersection of two or more sides

Definition of angle is...

• Two coplanar lines that never intersect

• Intersection of two rays at a common endpoint

• Angle with degree measure of 90

• Common endpoint of an angle, intersection of two or more sides

Definition of vertex is...

• Two coplanar lines that never intersect

• Intersection of two rays at a common endpoint

• Angle with degree measure of 90

• Common endpoint of an angle, intersection of two or more sides

Definition of right angle is...

• Two coplanar lines that never intersect

• Intersection of two rays at a common endpoint

• Angle with degree measure of 90

• Common endpoint of an angle, intersection of two or more sides

Definition of acute angle is...

• Angle with degree measure greater than 0 but less than 90

• Angle with degree measure greater than 90 but less than 180

• Angle with degree measure of 180

• Angles that have the same measure

Definition of obtuse angle is...

• Angle with degree measure greater than 0 but less than 90

• Angle with degree measure greater than 90 but less than 180

• Angle with degree measure of 180

• Angles that have the same measure