The length, breadth, and thickness of a block are given by l = 12 cm, b = 6 cm and t = 2.45 cm The volume of the block according to the idea of significant figures should be
Volume V = l × b × t
= 12 × 6 × 2.45 = 176.4 cm3
V = 176.4 ×102 cm3
Since, the minimum number of significant figure is one in breadth, hence volume will also contain only one significant figure. Hence, V = 2 ×102 cm3.