The length, breadth and thickness of a block are given by I = 12 cm, b = 6 cm and t = 2.45 cm, respectively. The volume of the block according to the idea of significant figures should be

Using the relation for volume,V = Length x Breadth X Thickness= 12 x 6 x 2.45= 176.4 cm3V = 1.764 x 102cm3The minimum number of significant figure is 3. Hence, the volume will contain only 3 significant figures. Therefore,V ≃1.76 x 102cm3•