Final answer:
To find the length of the missing side D of a plot of land when given the perimeter, you subtract the sum of the lengths of sides A, B, and C from the perimeter.
Step-by-step explanation:
The question involves finding the length of the missing side of a plot of land, given the perimeter. To answer this, you would subtract the lengths of the known sides from the given total perimeter. If the perimeter of the plot is 196 feet and you know the length of sides A, B, and C, you can find the length of side D (the missing side) using the formula:
D = Perimeter - (A + B + C)
First, add the lengths of sides A, B, and C. Then subtract this sum from the total perimeter to find the length of side D. This process will give you the missing side length needed to complete the fence.