If the length of a rectangular l = 0.5 cm, breath b = 2.1 cm and minimum possible measurement by scale = 0.1 cm then the area is

The length and breadth of a rectangular block are 25.2 cm and 1.68 cm, which have both been measured to an accuracy of 0.1 cm. Find the area of the rectangular block.

The length and breadth of a rectangular block are 25.2 cm and 16.8 cm, which have both been measurd to an accurancy of 0.1 cm find the area of the rectangular block.

The length the breath of a rectangular object are 25 cm and 10 cm respectively and were measured to an accuracy of 0.1 cm . The percentage error in area is