Chapter 4 - Section 4.7 - Relative Error and Percent of Error - Exercise - Page 191: 14

0.01 ha, 0.005 ha, 0.0625, 6.25 %

For the given measurement, we have The precision is 0.01 ha The greatest possible error is one-half the precision $0.5\cdot 0.01 \ ha= 0.005 \ ha$ The relative error is $relative~error=\dfrac{greatest~possible~error}{measurement}$ $\frac{0.005\ ha}{0.08\ ha}=0.0625$ The percent of error is $6.25\%$