Answer:
Width = 29.6 feet
Length = 48.6 feet
Area =719.28 square feet
Step-by-step explanation:
Let width = x feet.
The width of the garden is 19 feet less than its total length, then length = x + 19 feet
Total fencing = 3 widths + 2 lengths
= 3x + 2(x + 19)
= 3x + 2x + 38
= 5x + 38
Total fencing = 186 feet, so
[tex]5x+38=186\\ \\5x+38-38=186-38\\ \\5x=148\\ \\x=29.6\ feet\\ \\y=29.6+19=48.6 \ feet[/tex]
Total area
[tex]29.6\times 48.6=1,438.56\ ft^2[/tex]
Half the area
[tex]1,438.56\ ft^2 :2=719.28\ ft^2[/tex]