Chapter 1, Problem 48E

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 47 to calculate the following.

1. a. 1 ha = __________ km²
2. b. The area of a 5.5-acre plot of land in hectares, square meters, and square kilometers
3. c. A lot with dimensions 120 ft by 75 ft is to be sold for $6500. What is the price per acre? What is the price per hectare?