A variable cost is a constant amount per unit produced or used. Therefore, the total amount of the variable cost will change proportionately with volume or activity. Generally, a product's direct materials are a variable cost. To illustrate, let's assume that a bakery uses one pound of flour at a cost of $0.70 per pound for every loaf of bread it produces.
Most sports fields are one hectare in size. The Apple Bowl in Kelowna for instance is a 400 m running track and the grassy area inside is 1.12 hectares. The international rugby field pictured above is very close to one hectare in size, it is actually 1.0008 hectares. A perfect square is 100 meters by 100 meters is a hectare. An acre is about 0.4047 hectare and one hectare contains about 2.47 acres.
Dimensions of an Acre. An acre is equivalent to 43,560 square feet or 4,840 square yards. It has no specific shape, length or width. In the metric system, its equivalent is 40 percent of a hectare. A survey acre is equivalent to 4,046.8726098 square meters. On the other hand, the equivalent of an international acre is 4,046.8564224 square meters.