Cone
A three dimensional shape with a circular base and a vertex opposite the base
Cylinder
A solid composed of two parallel congruent circles. Those circles are connected by the sides that create the height of the cylinder.
Prism
A solid figure that has two congruent, parallel polygons as its bases. Its sides are parallelograms
Pyramid
A solid shape with a polygon as a base and triangular faces that come to a point (vertex)
Sphere
A solid shape that is perfectly round like a ball. No faces, edges, or vertices.
Three-Dimensional Figure
A solid figure that has length, width, and height
Base (of a solid figure)
A base of a solid figure is usually thought of as a face upon which it can "sit." Most solid figures have more than one base.
Area of the Base
In a three-dimensional figure, the area , in square units, of the base of the solid
Lateral Face
The faces on the side of a solid that are not the base(s)
Lateral Surface Area
Sum of the surface areas of all the lateral faces of a solid
Total Surface Area
For a three-dimensional figure, the sum of the areas of all the faces and bases of the figure; Lateral area plus base area
Volume (of a solid figure)
The amount of space a three-dimensional solid takes up
Cross-Section
The intersection of a three-dimensional figure and a plane
Slant Height (of a pyramid)
Used to find the total surface area of a pyramid. This is not the height of the pyramid.
Scale Factor
The ratio of any two corresponding lengths in two similar geometric figures.
Symmetry
When a shape is congruent to the original shape when it is moved, rotated, or flipped