Find the square root 169 by using ‘Viiokanam’ method.
169
∵ Unit place of 169 is 9
∴ 169 is a perfect square number
Sum of digits = 1 + 6 + 9 = 16
Extreme digit (charam ank) of square root will be either 1 or 3 and tens place digit will be 1.
Thus hence square root of 169 = 13
