Question 1098848
x, side length for one side of the square piece;
4x, the perimeter for the square;
74-4x, the circumference for the circle part.


Circle:
area is {{{pi*r^2}}}
circumf is {{{2pi*r=74-4x}}}
-
{{{r=(74-4x)/(2pi)}}}

{{{r=(27-2x)/pi}}}



Total Area of Square plus Circle:
{{{x^2+pi((27-2x)/pi)^2}}}


{{{highlight(x^2+(1/pi)(27-2x)^2)}}}


Looking for domain, use  {{{27-2x>0}}}, and solve this inequality for x.