Final answer:
To round 362.48 cm to three significant figures, you keep the '2' as the last significant figure to get 362 cm, since the digit to the right is '4', which is less than 5 and does not require rounding up.
Step-by-step explanation:
To round the measured number 362.48 cm to three significant figures, we first need to identify the third significant figure in the number. In this case, the third significant figure is the digit '2' in '362'. Next, we check the digit to the right of the third significant figure, which is '4' in this case. Since '4' is less than 5, we do not need to increase the third significant figure. Therefore, the number 362.48 cm rounded to three significant figures is 362 cm.
When performing operations like multiplication or division, remember that you need to round your result to the same number of significant figures as the measurement with the fewest significant figures. For example, in the problem of multiplying 0.6238 cm by 6.6 cm, we round the result to the least certain value, which in this case is two significant figures, resulting in 4.1 cm².