Answer: 32
Step-by-step explanation:
In mathematics, we get the geometric mean of a group of n numbers by taking the nth root of the product of the numbers.
Since 256 = 16^2 and 4 =2^2 are perfect squares, the easiest method is to multiply their square roots:
Geometric mean of 256 and 4:
= 16^2 × 2^2
= 16 × 2
= 32
