It's a terrible reference drawing but do you think it turned out good?

its really awesome. i can tell you have your own style which is great, reference drawing doesn't always have to be accurate, sometimes you have to put your own style into it and i can tell you did that.

great job and keep on drawing you have lots of potential =]

perimeter = 2l +2w, divide total perimeter by 2 for total length of 1 side and 1 width

172/2 = 86 (  total for 1 side and 1 width)

86-24 = 62 (since length is 24 ft longer subtract 24 then divide by 2 for width)

62/2 = 31

width = 31 feet

length = 31 +24 = 55 feet

check: 31*2 = 62, 55*2 = 110,  110+62 = 172