Question 169: Units , Dimensions and Error Analysis

Question

The area of a square is 5.29 cm
2
. The area of
7 such squares taking into account the
significant figures is :-

Accepted Answer

The area of one square is 5.29 cmÃÂ².
To find the area of 7 such squares, we can simply multiply the area of one square by 7:
7 x 5.29 cmÃÂ² = 37.03 cmÃÂ²
Since the given area has three significant figures, we need to round our answer to three significant figures as well.
Therefore, the area of 7 such squares, taking into account the significant figures, is 37.0 cmÃÂ².

Answer

37.0 cm
2

Answer

37 cm
2

Answer

37.030 cm
2

Answer

37.03 cm
2

Units , Dimensions and Error Analysis

The area of a square is 5.29 cm 2 . The area of 7 such squares taking into account the significant figures is :-

Choose the correct answer: