Significant Figures and Area Calculations

A carpet is 1.69 meters long and 2.09 meters wide. What is its area before rounding?

• 3.5321 square meters

• 3.53 square meters

• 3.5 square meters

• 4.0 square meters

How many significant figures are in the measurement "1.69 meters"?

• 1

• 2

• 3

• 4

When multiplying two measurements, how do you determine the number of significant figures in the final answer?

• The answer should have the same number of significant figures as the measurement with the most significant figures.

• The answer should have the same number of significant figures as the measurement with the fewest significant figures.

• The answer should always have two significant figures.

• The answer should have as many significant figures as possible.

If a calculated area is 3.5321 square meters, and the original measurements each had 3 significant figures, what is the correct area when rounded to the proper number of significant figures?

• 3.532 square meters

• 3.53 square meters

• 3.5 square meters

• 3.6 square meters

A rectangular area measures 1.69 meters long and 2.09 meters wide. What is its area, rounded to the correct number of significant figures?

• 3.5321 square meters

• 3.53 square meters

• 3.5 square meters

• 3.6 square meters

What is the area of one small tile that will be used for the bathroom floor?

• 1.07 square feet

• 10.1 square feet

• 12.07 square feet

• 3.53 square meters

A bathroom floor is 10.1 feet long and 12.07 feet wide. What is the exact calculated area of the floor before any rounding?

• 22.17 square feet

• 121.907 square feet

• 122 square feet

• 121 square feet

If the bathroom floor is about 121.907 square feet and each tile is 1.07 square feet, how many tiles are needed to cover the floor, rounded to the nearest whole tile?

• 100 tiles

• 114 tiles

• 122 tiles

• 130 tiles