To find the percent error of the measurement, we need to know the actual value or the accepted value that we are comparing against. The percent error formula is:
\[ \text{Percent Error} = \left( \frac{|\text{Measured Value} - \text{Actual Value}|}{\text{Actual Value}} \right) \times 100% \]
If we assume that the actual value is known (let’s say 0.5 cm, as an example), we can plug those values into the formula. However, because we do not have that actual value in your question, I cannot compute a specific percent error.
If you provide an actual value, I can help calculate the percent error based on that.