A student measures a rectangular room to be 20.0 m × 17.16 m. Which of the numbers below represents the room’s area with the correct number of significant features.
340 m2
343 m2
343.2 m2***
343.20 m2
the product will have the same number of sig fig as the factor with the LEAST number of sig fig
To find the area of a rectangle, you need to multiply the lengths of its sides. In this case, the lengths are 20.0 m and 17.16 m.
To determine the number of significant figures in the final answer, you need to look at the given measurements and use the rule of significant figures. According to the rule, when multiplying or dividing measurements, the answer should be rounded to the same number of significant figures as the measurement with the least number of significant figures.
In this case, the measurement with the least number of significant figures is 20.0 m, which has three significant figures. Therefore, the answer should also be rounded to three significant figures.
When you multiply 20.0 m and 17.16 m, you get 343.2 m^2. Since this is rounded to three significant figures, the correct number representing the room's area with the correct number of significant figures is 343.2 m^2.
Therefore, the correct choice is 343.2 m^2.
a. How could the scenario have been prevented?
b. How should the student respond in the scenario to minimize the harm?
During an experiment, Carin carefully pours solution A from a test tube into a beaker. Krystal sneaks up behind Carin to wish her a happy birthday. Carin accidentally drops the beaker on the floor, shattering it on her uncovered toes. GIVE A SUMMERY/ESSAY (3-4 sent.)