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.

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The length, breadth, and thickness of a rectangular sheet of metal ...
What is the total surface area to correct significant figures? ... and thickness of a rectangular sheet of metal are 4.234 m, 1.005 m and 2.01 cm respectively.
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Volume of the rectangular prism = lbh
Surface area of the rectangular prism [math] = 2[lb + bh + hl] [/math] where, l -length, b- breadth and h- height
Rules for Significant Figures
https://byjus.com/chemistry/significant-figures/
Given that
Length of the rectangular sheet = 4.234 m
Breadth of the rectangular sheet = 1.005 m
Thickness rectangular sheet = 2.01 cm = 0.0201 m
Step 1: Calculating the rectangular sheet surface area and the corresponding significant figures.
Length l = 4.234 m, Significant figure = 4
Breadth b = 1.005 m, Significant figure = 4
Thickness(height) h = 0.0201 m, Significant figure = 4
Surface area of the rectangular sheet [math] = 2[lb + bh + hl] [/math]
= 2 (4.234*1.005 + 1.005*0.0201 + 0.0201*4.234)
= 2 (4.25517 + 0.02620 + 0.08510)
= 2*4.360
= 8.7209
= 8.72 m^2 ,
Significant figures = 3
Step 2: Finding the volume of the triangular sheet
Volume of the triangular sheet V = lbh
V = 4.234*1.005*0.0201
V = 0.0855
Hence, volume of the triangular sheet = 0.0855 m^3
Significant figures = 3