Geometry Vocabulary

Names an exact location in space

• angle

• ray

• point

• line

Lines that never intersect and will always stay the same distance apart

• perpendicular lines

• intersecting lines

• Parallel lines

a straight path that continues in opposite directions without ending

• line segment

• ray

• angle

• line

a line dividing a figure into two parts that are congruent and mirror images

• perpendicular lines

• line of symmetry

• parallel lines

• intersecting lines

an angle that measure more than 90 degrees but less than 180 degrees

• right angle

• acute angle

• obtuse angle

• straight angle

a part of a line that has two endpoints

• ray

• angle

• line segment

• point

a part of a line that starts at one endpoint and continues in one direction without ending

• line segment

• angle

• line

• ray

an angle that measure less than 90 degrees

• right angle

• acute angle

• obtuse angle

• straight angle

an angle that measures exactly 90 degrees

• right angle

• acute angle

• obtuse angle

• straight angle

lines that cross at a 90 degree angle

• line of symmetry

• perpendicular lines

• parallel lines

• intersecting lines