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# Circumference, Area and Volume

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Become familiar with methods used to calculate two-dimensional and three-dimensional objects.

### Calculate Circumference, Area and Volume

Measurement calculations are important in daily life. Area calculations are needed in many activities, including planning a garden, determining how much paint to cover a surface, or purchasing new carpet. Calculating volume is important when purchasing fuel, estimating beverages for a birthday celebration, planning hydration for a long hike, or selecting an appropriate storage container. Apply these basic formulas to calculate circumference, area, and volume of simple geometric shapes commonly used in weights and measures applications.  TIP: Express all dimensions in terms of the same unit - for example, in terms of meter. A computed area will then be in terms of the square of the dimensional unit used - for example, square meter (m2) - and a computed volume will be in terms of the cube of the dimensional unit used - for example, cubic meter (m3).

• Circumference of circle: 3.1416 × diameter
• Area of circle: 0.7854 × diameter × diameter
• Area of rectangle: length × width
• Capacity of rectangular bin: length × width × depth
• Volume of cylinder: 0.7854 × diameter × diameter × height
• Approximate capacity of container having sloping sides: vertical height × one-half the sum of top area and bottom area