
prism
A solid geometric figure whose two ends are similar, equal, and parallel rectilinear figures, and whose sides are parallelograms.

quadrilateral
A foursided polygon.

radius
A straight line from the center to the circumference of a circle or sphere.

rectangle
A parallelogram with 90 degree angles. A square is also a rectangle.

regular polygon
A polygon with equal angles and equal sides.

right triangle
A triangle that has a 90 degree angle.

round
Two or more exterior surfaces rounded at their intersections.

square
A regular polygon with four equal sides and four 90 degree angles.

surface area
The squared dimensions of the exterior surface.

tangent
A straight or curved line that intersects a circle or arc at one point only.

title block
A table located in the bottom righthand corner of an engineering drawing that identifies, in an organized way, all of the necessary information that is not given on the drawing itself. Also referred to as a title strip.

triangle
A polygon with three sides.

vertex
Each angular point of a polygon, polyhedron, or other figure.

volume
The amount of threedimensional space occupied by an object or enclosed within a container.

quadrilateral
A foursided polygon.

