Question 316785
The length and width form the legs of a right triangle.
The diagonal is the hypotenuse of the right triangle.
Use the Pythagorean theorem to calculate the diagonal.
{{{D^2=L^2+W^2=16^2+10^2}}}
{{{D^2=256+100}}}
{{{D^2=356}}}
{{{D=sqrt(356)=2sqrt(89)}}}  or approximately
{{{D=18.7}}}ft