Find the geometric mean of 7 and 7 using the definition of the geometric mean.

The definition of the geometric mean is the positive square root of the product of two numbers. Here, we're square-rooting the product of 7 and 7.

Multiplying 7 × 7 gives us 49.

Taking the positive square root of 49 gives us 7. That means the geometric mean of 7 and 7 is (you guessed it) 7.

m = 7