Three-Dimensional Figure (Solid Figure)

A figure that has length, width, and depth.

Translation (Slide)

A slide of a figure in a plane.

Trapezoid

A quadrilateral with exactly one pair of parallel sides.

Triangle

A closed figure with three sides and three vertices.

Variable

A letter that stands for an unknown number in a mathematical expression or sentence.

Vertex (Vertices)

Point(s) where lines, rays, sides of a polygon or edges of a polyhedron meet.