| rightangle | | A plane surface of a geometric solid |
| areaofatriangle | | A solid geometric figure generated by the revolution of a semicircle about its diameter |
| equalateraltriangle | | A polygon having eight sides |
| hexagon | | A solid bounded by six equal squares, the angle between any two adjacent faces being a right angle |
| angle | | Two rays with a common end point form an angle |
| chord | | A quadrilateral with two pairs of parallel sides |
| rectangle | | an angle that is 90 degrees |
| compass | | A closed plane figure having three sides and three angles |
| parallelogram | | The line segment between two points on a given curve |
| righttriangle | | An instrument having a graduated arc for plotting or measuring angles |
| pentagon | | An instrument for drawing or describing circles |
| sphere | | 180 degrees |
| geometry | | A triangle that has one right angle |
| symmetry | | A straight line passing through the center of a circle or sphere and meeting the circumference or surface at each end |
| protractor | | A rectangle having all four sides of equal length |
| scalenetriangle | | A quadrilateral plane figure having two parallel and two nonparallel sides |
| vertex | | 360 degrees |
| octagon | | A polygon having five sides |
| faces | | A line in which falls on the other in such a way as to create congruent adjacent angles |
| triangle | | A triangle that has all congruent angles |
| diameter | | A triangle with no two sides of equal length |
| isoscelestriangle | | An equilateral parallelogram, including the square as a special case |
| rhombus | | A quadrilateral plane figure having two parallel and two nonparallel sides |
| square | | A surface or solid bounded by two parallel planes |
| cube | | A triangle with two equal sides |
| trapeqoid | | a continuous extent of length, straight or curved, without breadth or thickness; the trace of a moving point |
| areaofarectangle | | A parallelogram having four right angles |
| line | | the point farthest from the base |
| cylinder | | The branch of mathematics that deals with the deduction of the properties, measurement, and relationships of points, lines, angles, and figures in space from their defining conditions by means of certain assumed properties of space |
| perpendicularlines | | A rotation or translation of a plane figure that leaves the figure unchanged although its position may be altered |
