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.

Answer:

We know that, area of the rectangle = length x breadth

= 4.234 x 1.005 = 4.255 m2

Area of the rectangle = 4.3 m2

Expression of the volume of the rectangle = length x breadth x thickness

= 4.234 x 1.005  x  2.01 x 10-2 

Volume of the rectangle 8.55 x 10-2 m3.