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Posted by **Gabby** on Tuesday, September 17, 2013 at 10:52pm.

1 ***

2

3

4

Calculate the area, with the appropriate number of significant figures, of a rectangular room that is 14.10 m wide by 15.0 m long.

212 m^2***

211.5 m^2

29.1 m

29.10 m

Am I right or wrong?

- Math in Science -
**DrBob222**, Tuesday, September 17, 2013 at 11:00pmI think you are right.

Many may argue with the first one and suggest 40 has two s.f. To have two, however, it should be written as 40. where the . is not the end of the sentence. To avoid confusion many would write that as 4E1 to show the one s.f. and not two.

- Math in Science -
**Gabby**, Tuesday, September 17, 2013 at 11:03pmOk but in all I'm right?

- Math in Science -
**DrBob222**, Tuesday, September 17, 2013 at 11:46pmThat's what I said, you are right.

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