Question

what the geometric mean of 18 and 30 as a square root?

Answer 1

The geometric mean of 18 and 30 is the product of 18 and 30 square rooted, so:

 

      $\sqrt{18*30} =\sqrt{540} =\sqrt{9*4*15} =\sqrt{36*15} =6\sqrt{15}$

Hope that helps!