Geometry Essentials

A point, ray, line, segment, or plane that intersects a segment at its midpoint is called a _______________________________.

• segment bisector

• angle bisector

• line

• congruent segment

Points that lie on the same line are called ___________________________________.

• collinear points

• noncollinear points

• defined Terms

• endpoints

A rule that is accepted without a proof is called a ______________________.

• postulate

• defined term

• linear pair

• right angle

Two angles whose sides form two pairs of opposite rays, share the same vertex, and are equal are called a _____________________.

• congruent angles

• right angles

• vertical angles

• acute angles

Points that lie in the same plane are called ____________________.

• coplanar points

• collinear points

• line segment

• defined terms

If point C lies on line AB between A and B, then ray CA and ray CB are _____________________.

• opposite rays

• segment bisectors

• congruent segments

• midpoints

Points that are at the ends of a line segment are called _____________________________.

• endpoints

• arrows

• rays

• midpoints

An angle with a measure between 0 and 90 degrees is called an _____________________.

• acute angle

• right angle

• obtuse angle

• straight angle

An _______________________ is a starting point or reasoning or premise. In other words, it is a rule that is accepted without a proof.

• axiom

• defined term

• angle bisector

• obtuse

_______________________ are angles that have the same measure.

• congruent angles

• right angles

• acute angles

• straight angles