The length of a notebook 15cm, was measured as 16.8cm. Calculate the percentage error to 2 significant figures.
A
12.00%
B
11.00%
C
10.71%
D
0.12%
Verified Correct Answer: A.
Step-by-Step Mathematical Solution
Error = (16.8cm - 15cm = 1.8cm\)
\(\text{% error} = \frac{1.8}{15} \times 100% = \frac{180}{15}\)
= \(12.00%\)
Source: Myschool Past Questions Archive (Record #30875)