Explanation:
To find the percentage error, you can use the following formula:
Percentage Error = [(|Measured Value - True Value|) / True Value] * 100
In this case:
Measured Value = 9.2 cm
True Value = 9.8 cm
Using the formula, we can calculate the percentage error:
Percentage Error = [(|9.2 - 9.8|) / 9.8] * 100
= [(0.6) / 9.8] * 100
≈ 6.12%
Therefore, the percentage error is approximately 6.12%.