72 because if the area is 324 and you make a block chart and count the sides it will equal 72
20 centimeters.
72
The perimeter of this square measures 4 x 1 = 4 decimeters. As 1 decimeter = 10 centimeters then 4 decimeters = 4 x 10 = 40 centimeters.
The square root of 324 is 18 so the perimeter must be 4*18 = 72 cm
around 33.94 centimeters
The perimeter of a 72-acre square is 7,080 feet or 1.34 miles.
72
52 cm
Oddly enough the perimeter is 16 centimeters.
If the rectangle is a square, the perimeter is 48 cm. If not, there are a lot of possibilities.
72
The perimeter of a 900 square centimeter square is 120 centimeters.
20
128 cm
31 centimeters
The square root of 289 is 17 Perimeter = 4*17 = 68 cm