Question 895810
width w, length L;
d for diagonal.
d=17


{{{2w+2L=49}}};
{{{w^2+L^2=d^2}}}
{{{w^2+L^2=17^2}}}


Solve the nonlinear system
{{{highlight_green(system(2w+2L=49,w^2+L^2=17^2))}}}


Solve for a variable from the linear equation, and substitute into the Pythagorean Theorem equation, and solve for the single variable there.  Finish with the other unsolved, unknown variable again using the linear equation.