Although the preferred SI unit of area is the square meter, land is often measured in the metric system in hectares (ha). One hectare is equal to 10,000 m2. In the English system, land is often measured in acres (1 acre = 160 rod2). Use the exact conversions and those given in Exercise 43 to calculate the following.
b. The area of a 5.5-acre plot of land in hectares, square meters, and square kilometers.