Answer:
The percent error of the measurement, to the nearest tenth of a percent is

Explanation:
Estimated length of a line = 12.4 inches
Actual length of the line = 15.7 inches
Error = 15.7 - 12.4 = 3.3 inches
Percent error of the measurement
≈ 21.0
So, the percent error of the measurement, to the nearest tenth of a percent is
