Answer:
The answer is 169.
Step-by-step explanation:
To solve the analogy 81 : 13 :: ? : ?, let's identify the relationship between 81 and 13.
81 is 9^2 , which means it is the square of 9.
13 is a prime number and not a perfect square.
The analogy appears to relate to squaring a number and then finding a prime number. If we continue this pattern, let's square 13 to find the missing number: 13^2 = 169
Therefore, the analogy 81 : 13 :: ? : ? suggests that the missing number corresponding to 13 is its square, which is 169.
So, the answer is
169
