Question 307970
Let x= base
4x= height


Area = {{{(b*h)/2}}}
Area = {{{(x*4x)/2=18}}}
{{{2x^2=18}}
{{{x^2=9}}}
{{{x=3}}} inches (NOTE:  Reject x=-3!)


Base = x = 3 inches
Height=4x=12 inches


Dr. Robert J. Rapalje, Retired