8.3 Outline
- Dimensions
- one-dimensional measurement (length)
- two-dimensional measurement (area)
- three-dimensional measurement (volume)
- Surface area
- Volume
- formula for a cube
- rectangular parallelepiped
- Capacity
- standard units of capacity
- relationship between volume and capacity
- U.S.
- metric
8.3 Essential Ideas
The surface area of a three-dimensional object is the sum of the areas of the faces.
The volume of a three-dimensional object is the number of cubes that can be placed in its interior.
Some common area formula for area are:
cube; V = s3
parallelepiped; V= lwh
To measure capacity, the amount of liquid held in a container, use the following units of measurement:
U.S. System | Metric System |
gallon (gal.) | liter (L) |
quart (qt; 1/4 gal) | kiloliter (kl; 1,000 L) |
ounce (oz; 1/128 gal) | milliliter (ml; 1/1,000 L) |
cup (c; 8 oz) |