Answer:
The relative error is the ratio of the error to the measured value. In this case, the measured value is 84 cm, and the error is 0.5 cm.
Relative Error = (Error / Measured Value) * 100%
Substituting the given values:
Relative Error = (0.5 cm / 84 cm) * 100%
Calculating:
Relative Error ≈ (0.5952%)