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23 Cards in this Set
- Front
- Back
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Square Unit
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A unit for measuring area.
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Perimeter
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The distance around a closed figure.
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Area
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The number of square units needed to cover a region or figure.
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Formula
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An equation that shows a mathematical relationship.
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Right Triangle
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A triangle with one right angle.`
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Base
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A side of a polygon, usually the one at the bottom in a given position.
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Height
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The distance from the base to the top of a figure.
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Circumference
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The distance around a circle. The circumference is about 3 times the length of the diameter.
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Pi
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The ratio of the circumference of a circle to its diameter. (Pi equals about 3.14 or 22/7)
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Face
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A flat side of a 3-dimensional figure.
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Edge
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A line segment where two faces of a 3-dimensional figure meet.
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Vertex
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The common point of the two rays of an angle, two sides of a polygon, or three or more edges of a 3-dimensional figure.
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Prisms
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A 3-dimensional figure with two parallel congruent bases. The rest of the faces are rectangles or parallelograms.
Examples: Cube, rectangular prism |
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Cube
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A prism, all of whose faces are squares.
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Rectangular Prism
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A prism, all of whose faces are rectangles.
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Triangular Prism
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A prism with two parallel, congruent bases that are triangles.
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Pyramids
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A 3-dimensional figure that is shaped by triangles on a base.
Example: Square Pyramid, Triangular Pyramid |
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Triangular Pyramid
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A pyramid whose base is a triangle.
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Rectangular Pyramid
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A pyramid whose bas is a rectangle.
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Cylinder
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A 3-dimensional figure with one curved surface and two circlular bases.
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Cone
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A 3-dimensional figure with one curved surface, one vertex, and one circular base.
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Sphere
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A 3-dimensional figure that is the set of all points that are a given distance from a fixed point.
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Volume
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The number of cubic units that fit inside a 3-dimensional figure.
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