Question

3. Diego measured the length of a pen to be 20 cm. The actual length of the pen is 22 cm.

Which of these is closest to the percent error for Diego's measurement?
A. 2%
B. 4.5%
C. 10%
D. 9%

Answer 1

D


22cm—>100%
2cm—->2x100\22=9.09%

Diego’s error was 2cm Which represents 9.09% of the actual length of the pen