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The length, breadth and thickness of a rectangular sheet of metal are 4.234 m, 1.005 m, and 2.01 cm respectively. Give the area and volume of the sheet to correct significant figures.

The length, breadth and thickness of a rectangular sheet of metal are 4.234 m, 1.005 m,
and 2.01 cm respectively. Give the area and volume of the sheet to correct significant
figures.
Grade:11

1 Answers

Kevin Nash
askIITians Faculty 332 Points
10 years ago

Length of sheet, l = 4.234 m

Breadth of sheet, b = 1.005 m

Thickness of sheet, h = 2.01 cm = 0.0201 m

The given table lists the respective significant figures:

Quantity

Number

Significant Figure

l

4.234

4

b

1.005

4

h

2.01

3

Hence, area and volume both must have least significant figures i.e., 3.

Surface area of the sheet = 2 (l × b + b × h + h × l)

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