Your bedroom has a rectangular shape and you want to measure its size. You use a

Question

Your bedroom has a rectangular shape and you want to measure its size. You use a tape that is precise to 0.001 m and find that the shortest wall in the room is 3.547 m long. The tape, however, is too short to measure the length of the second wall, so you use a second tape, which is longer but only precise to 0.01 m. You measure the second wall to be 4.79 m long. Which of the following numbers is the most precise estimate that you can obtain from your measurements for the area of your bedroom? 17.0 m^2 16.990 m^2 16.99 m^2 16.9 m^2 16.8 m^2

Explanation / Answer

area of the rectangular is = length *width

A = 3.547 m *4.79 m

= 16.990 m^2

the most precise  measurement for the area of bedroom is = 17 m^2 (in 3 significant figure)

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