Geometry Terminology

Two lines that intersect and form a right angle

• parallel lines

• rays

• segments

• perpendicular lines

a line, segment, or ray that intersects a segment at it's midpoint and divides the segment into two equal parts

• angle bisector

• perpendicular bisector

• segment bisector

• midpoint

two angles that have the same measure

• obtuse angles

• angle bisector

• congruent angles

• right angles

A series of points that extend in opposite directions without end

• ray

• point

• line

• plane

what is this image

• obtuse angle

• acute angle

• space

• point

what is this image of

• line

• ray

• acute angle

• point

This point divides a line segment into two equal parts

• point

• vertex

• midpoint

• segment

What is x?

• 154

• 156

• 165

• 123

What is the measure of    < PQS?

• 53

• 57

• 67

• 66

What is the measure of x?

• 60°, complementary

• 60°, supplementary

• 120°, vertical

• 120°, adjacent