If it's rectangular, just multiply the length times the width.
Perimeter = 12+12+16+16 = 56 feet Area = 12*16 = 192 square feet
21
676 feet
Perimeter of garden: 39+45+39+45 = 168 feet
The area is 15*20 = 300 square feet.
100 squared yards or 1002 yards
Perimeter = 12+12+16+16 = 56 feet Area = 12*16 = 192 square feet
768
Perimeter = (1 + 29 + 1 + 29) = 60 ft Area = (1 x 29) = 29 square feet
Assuming the garden is a rectangle, the sides of the garden are 8 feet in length and 2 feet in width.
It is 60 feet.
21
16 feet long and 3 feet wide is 4.46 square meters.
15 square feet
676 feet
450 square feet.
Perimeter of garden: 39+45+39+45 = 168 feet