The height of this iron rod is estimated to be 100 centimeters. What is the possible error of measurement?
A. 10 cm
B. 5 cm
C. 2.5 cm
D. 1 cm
The possible error of measurement is usually expressed as half of the smallest unit of measurement. In this case, the smallest unit of measurement is 1 centimeter. Therefore, the possible error of measurement would be 0.5 centimeters or 0.5 cm.
However, none of the options provided match this value exactly. The closest option would be "D. 1 cm" since it is the next whole number value. Therefore, the possible error of measurement in this case would be 1 centimeter.