The length of a piece of stick is 1.75m. A girl measured it as 1.80m. Find the percentage error
Answer Details
The actual length of the stick is 1.75m and the measured length is 1.80m.
The error is the difference between the actual and measured length:
1.80m - 1.75m = 0.05m
To find the percentage error, we divide the error by the actual length and multiply by 100%:
\frac{0.05}{1.75} \times 100\% \approx 2.857\% \approx \frac{20}{7}\%
Therefore, the percentage error is approximately \frac{20}{7}\%.