Simply substitute 14 in place of S in the equation:
âš(14 to the 2nd power + 14 to the 2nd power) or âš(14^2 + 14^2)
Next, multiply 14 by itself to get 196, and replace both of the 14 to the 2nd powers:
âš(196 + 196)
Now add to get 392:
âš(392)
Finally, take the root and round:
20 inches
