herlert: can i have help finding w?
l=2
h=3
d=18
w=?
d=sqrt(l^2+h^2+w^2)
square both sides of the equation to get d
2 = l
2 + h
2 + w
2 rearrange the equation to get w
2 = d
2 - l
2 - h
2 Put the known values of d, l and h into the right-hand side and take the square root of the result. Mathematically, there will be two values for w, one the negative of the other.
+33616 
+118609 
