1 hectare =15mu =100mu =10000m2. The hectare is the metric unit (international unit) of area. A piece of land with an area of one hectare, 10000 square meters, is slightly larger than a standard football field.

Mathematical formula is an expression method that people find some connection between things in nature and express it in some way. Mathematical formulas represent the equal or unequal relationship between the quantities of different things in nature.