Question

part a
what is the area of a rectangle that is 3.1 cm wide and 4.4 cm long? enter the full - precision answer first to see the corresponding feedback before entering the properly - rounded answer. (you do not need to enter the units in this case since they are provided to the right of the answer box).
check your rounding. your final answer should be rounded to 2 significant figures in the last step.
no credit lost. try again.

Explanation:

Step1: Calculate the area

The formula for the area of a rectangle is \(A = l\times w\), where \(l = 4.4\) and \(w = 3.1\).

$$A=4.4\times3.1 = 13.64$$

Step2: Round to 2 significant figures

For \(13.64\), looking at the third digit (6 which is \(\geq5\)), we round up the second digit. So \(13.64\approx14\)

Answer:

14