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Geometric Figures
| Question | Answer |
|---|---|
| The common endpoint of the rays forming the angle. | Vertex |
| An angle whose measure is exactly 90 degrees. | Right angle |
| An angle whose measure is less than 90 degrees. | Acute angle |
| An angle whose measure is between 90 and 180 degrees. | Obtuse angle |
| An angle that measures exactly 180 degrees. | Straight angle |
| Opposite angles formed by the intersection of two lines. They are congruent. | Vertical Angles |
| Figures that have the same size and same shape and corresponding sides and angles with equal measure | Congruent |
| Angles that share a common vertex, a common side, and do not overlap. | Adjacent angles |
| Two angles whose sum measures 90 degrees. | Complementary angles |
| Two angles whose sum measures 180 degrees. | Supplementary angles |
| A triangle having three acute angles. | Acute triangle |
| A triangle having one right angle. | Right triangle |
| A triangle having one obtuse angle. | Obtuse triangle |
| A triangle having no congruent sides. | Scalene triangle |
| A triangle with at least two congruent sides. | Isosceles triangle |
| A triangle having three congruent sides. | Equilateral triangle |
| A figure with three sides and three angles | Triangle |
| Sides with the same length | Congruent segments |
| The two parallel congruent faces of a polyhedron | Bases |
| A polyhedron with one base that is a polygon and three or more triangular faces that meet at a common vertex. | prism |
| A two dimensional flat surface that extends in all directions. | Plane |
| Lines or points that lie in the same plane. | Coplanar |
| Lines in a plane that never intersect. | Parallel |
| A three-dimensional figure with faces that are polygons. | Polyhedron |
| A flat surface of a polyhedron. | Face |
| A line segment that connects two nonconsecutive vertices. | Diagonal |
| A 3-D figure with two parallel congruent circular bases connected by a curved surface. | Cylinder |
| A 3-D figure with one circular base connected by a curved surface to a single vertex. | Cone |
| The intersection of a solid and a plane. | Cross Section |
| The set of all points in a plane that are the same distance from a given point called the center. | Circle |
| The given point from which all points on a circle are the same distance. | Center |
| The distance around a circle. | Circumference |
| The distance across a circle through its center. | Diameter |
| The distance from the center of a circle to any point on the circle. | Radius |
| The ratio of the circumference of a circle to its diameter. (represented by a Greek letter.) | Pi |
| Half of a circle | Semi-circle |
| A figure that is made up of two or more shapes. | Composite Figures |
| The measure of the space occupied in by a solid. | Volume |
| Any flat surface that is not a base. | Lateral face |
| The sum of the areas of all the surfaces (faces) of a three-dimensional figure. | Surface Area |
| The sum of the areas of the lateral faces of a solid. | Lateral Surface Area |
| The height of each lateral face | Slant height |
| A pyramid whose base is a regular polygon and in which the segment from the vertex to the center of the base is the altitude. | Regular Pyramid |
Created by:
krmclendon