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.
the other measurement often used for surface area is the metric measure hectares a hectare is precisely 100 metres by 100 metres and is much larger than an acre about 2 47 acres make up one hectare so an acre is only about 40 % of the size of a hectarehis is an attempt to help you visualise how big an area one acre is an acre measures an area of land and is about 70 yards by 70 yards which means about 4900 square yards or roughly 44000 square feet