Geometry Vocabulary

____is any ray, segment, or line that intersects a segment at its midpoint. It divides the segment into two equal parts at its midpoint.

• segment bisector

• sphere

• supplementary angles

• surface area

____ are two nonadjacent angles formed by two intersecting lines

• vertex of an angle

• vertex of a polygon

• vertical angles

• volume

____ is the point that divides, a segment into two congruent segments, it is halfway between the two endpoints

• midpoint

• obtuse angle

• opposite rays

• perimeter

A polyhedron that has a polygonal base and three or more triangular faces that meet at a common vertex is a ____

• polyhedron

• prism

• pyramid

• ray

A ____ is a polygon that is both equiangular and equilateral

• regular polygon

• regular polyhedron

• right angle

• segment

Are two angles whose measures have a sum of 180°

• segment bisector

• sphere

• supplementary angles

• surface area

A solid with all flat surfaces that encloses a single region of space is called a ________

• polyhedron

• prism

• pyramid

• ray

The two dimensional measurement of the surface of a solid figure is the _____

• segment bisector

• sphere

• supplementary angles

• surface area

A polyhedron with all equal side and all equal angles is a __________

• regular polygon

• regular polyhedron

• right angle

• segment

Lines, segments, or rays that form four right angles are ____

• perpendicular

• plane

• point

• polygon