click below
click below
Normal Size Small Size show me how
WLE Geometry Unit 10
2 and 3 dimensional shapes
Term | Definition |
---|---|
Base of a cone | the flat surface shaped like a circle |
Base of a pyramid | a face opposite the common vertex (apex) where the triangular faces meet |
Bases of a cylinder | the two congruent, opposite flat surfaces shaped like circles |
Bases of a prism | the two congruent, opposite faces that are connected by rectangular faces |
Classify | applying an attribute to categorize a sorted group |
Congruent | of equal measure. |
Congruent figures | figures that are the same size and same shape |
Decompose figures | to break a geometric figure into two or more smaller geometric figures |
Edge | where the sides of two faces meet on a three dimensional figure |
Face of a prism | a polygon that forms a surface of a prism |
Irregular figure | a polygon with sides and/or corners that are not all congruent |
Polygon | a closed figure with at least 3 sides, where all sides are straight (no curves) |
Properties of three-dimensional figures | relationship of attributes within a geometric figure (e.g., a rectangular prism has 6 faces and each pair of opposite faces (bases) are congruent, etc.) and between a group of geometric figures (e.g., a square and a rectangle both have 4 sides and 4 square corners; however, a square has 4 congruent sides but a rectangle has only opposite sides congruent; etc.) |
Quadrilateral | a polygon with 4 sides and 4 vertices |
Regular figure | a polygon with all sides and corners congruent |
Side | a straight outer boundary between two vertices (line segment) of a two-dimensional figure |
Sort | grouping objects or figures by a shared characteristic or attribute |
Three-dimensional figure | a figure that has measurements including length, width (depth), and height |
Two-dimensional figure | a figure with two basic units of measure, usually length and width. |
Unit fraction | a fraction in the form of 1/b representing the quantity formed by one part of a whole that has been partitioned into b equal parts where b is a non-zero whole number. |
Vertez (vertices) in a three dimensional figure | the point where three or more edges of a three- dimensional figure meet |
Vertex (vertices) in a two-dimensional figure | the point (corner where two sides of a two-dimensional figure meet |