12.

Question

Find the percent error of the measurement 4 cm.

4%

1%

12.5%

40%

Answer 1

To find the percent error of a measurement, you need to know the true value and the measured value. The formula for percent error is:

\[ \text{Percent Error} = \left( \frac{|\text{True Value} - \text{Measured Value}|}{\text{True Value}} \right) \times 100 \]

However, the problem does not provide a true value for comparison. Without knowing the true value, it's impossible to calculate the percent error directly.

Please provide the true value for a meaningful calculation of the percent error, or if you are looking for an assumption or a specific context, please clarify.