Question

10. The length of the red line measured is (blank) Count the number of significant figures (blank)

(include the correct unit).​

Answer 1

The length of redline measured is 5.5 cm . The number of significant figures is 2.

Using the ruler given for our Calculation:

The longer tick represents 1 cm

The shorter tick represents: 1/2 = 0.5 cm

The length of redline = 5.5 cm

The number of significant figures corresponds to the number of digits in our answer , which is 2.