The length and width of a standard sheet of paper is measured,and then the area is found by calculation to be 91.50 in.².The number of significant figures in the width measurement must be at least A)1. B)2. C)3. D)4. E)5.

Question

Quizplus · Accepted Answer

To find the area of the paper, we need to multiply the length by the width. Since the area has two decimal places, we want to make sure that the width measurement has at least two significant figures. Therefore, we need to choose option C with three significant figures to ensure that we have enough precision in our measurement.

The Length and Width of a Standard Sheet of Paper