Base area* height
base area:
parallelogram: width*length
triangles: (height * base) /2
P=4*a, where P - perimeter, a - length of one side of the square.
if a=x+3 and P=48, then 4(x+3)=48;
x=9.
Answer: 9 units.
One because if you put two then the would be 50 and thats over 41
