Final answer:
The geometric mean of 8 and 13 is approximately 10.2.
Step-by-step explanation:
The geometric mean of 8 and 13 can be found by taking the square root of their product.
In this case, the product of 8 and 13 is 104. Taking the square root of 104 gives us a value of 10.2.
Therefore, the geometric mean of 8 and 13 is approximately 10.2.