I can help u with one question,rest u can do it.
Pythagorean theorem is (hy)^2=(l)^2+(b)^2
Hypotenuse is the lingest side of a triangle
The pattern will be at the same place at 2 feet, 4 feet, 6 feet, 8 feet, 10 feet, 12 feet, 14 feet, 16 feet, and 18 feet
Part can’t get what ya want sooo idk what to tell u sorry not sorry
Please show a pic so i can understand better