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Geometry terms DOC
Geometry Terms
| Question | Answer |
|---|---|
| A triangle in which all three angles are acute | acute triangle |
| A figure formed by two rays that have a common endpoint | Angle |
| A line segment with its endpoints on a circle | Chord |
| A closed plane figure with all points on the figure the same distance from the center | Circle |
| The distance around a circle | Circumference |
| A figure that begins and ends at the same point | Closed figure |
| A solid figure that has a circular base and one vertex | Cone |
| Having the same size and shape | Congruent |
| Figures that have the same size and shape | Congruent figures |
| A plane formed by two intersecting and perpendicular number lines called axes | Coordinate plane |
| The numbers in an ordered pair | Coordinates |
| A solid figure with six congruent square faces | Cube |
| A solid figure that has two parallel bases that are congruent circles | Cylinder |
| A unit for measuring angles and temperature | Degree (°) |
| A line segment that passes through the center of a circle and has its endpoints on the circle | Diameter |
| A measure in one direction; the length, width, or height of a figure | Dimension |
| The line segment where two faces of a solid figure meet | Edge |
| A triangle with three congruent sides | Equilateral triangle |
| A polygon that is a flat surface of a solid figure | Face |
| Numbers that can be represented by geometric figures | Figurate numbers |
| A polygon with six sides and six angles | Hexagon |
| In a right triangle, the side opposite the right angle; the longest side in a right triangle | Hypotenuse |
| Lines that cross at exactly one point | Intersecting lines |
| A triangle with two congruent sides | Isosceles triangle |
| A straight path in a plane that goes on forever in opposite directions | Line |
| A part of a line that includes two points, called endpoints, and all of the points between them | Line segment |
| A figure has line symmetry if a line can separate the figure into two congruent parts | Line symmetry |
| A triangle that has one obtuse angle | Obtuse triangle |
| A polygon with eight sides | Octagon |
| A pair of numbers used to locate a point on a coordinate plane; the first number tells how far to move horizontally and the second number tells how far to move vertically | Ordered pair |
| Lines in a plane that never intersect | Parallel lines |
| A quadrilateral whose opposite sides are parallel and congruent | Parallelogram |
| A polygon with five sides | Pentagon |
| Two lines that intersect to form four right angles | Perpendicular lines |
| The ratio of the circumference of a circle to its diameter | pi |
| A flat surface that extends without end in all directions | Plane |
| A figure which lies in a plane | Plane figure |
| An exact location in space, usually represented by a dot | Point |
| When a figure can be turned half way about a central point and still look the same | Point symmetry |
| A closed plane figure formed by three or more line segments | Polygon |
| A solid figure with flat faces that are polygons | Polyhedron |
| A solid figure that has two congruent, polygon-shaped bases, and other faces that are all rectangles | Prism |
| A tool used for measuring or drawing angles | Protractor |
| A solid figure with a polygon base and all other faces triangles that meet at a common vertex | Pyramid |
| A polygon with four sides | Quadrilateral |
Created by:
17rcombs
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