Question 1084356
{{{x+x+d}}}, perimeter
d, <s>diagonal</s> hypotenuse
x, each leg


x is also height and a base.
{{{(1/2)x*x=5000}}}
{{{x^2=10000}}}
{{{highlight_green(x=100)}}}


Isosceles RIGHT Triangle.
{{{x^2+x^2=d^2}}}, Pythagorean Theorem Formula
{{{2x^2=d^2}}}
{{{d=x*sqrt(2)}}}
{{{highlight_green(d=100*sqrt(2))}}}


Perimeter:  {{{100+100+100*sqrt(2)}}}
{{{highlight(200+100*sqrt(2))}}}