Perimeter = 15+15+35+35 = 100 cm
Oddly enough the perimeter is 16 centimeters.
31 centimeters
The side of the square is equal to the diameter of the circle, in this case 2a so the perimeter is 8a cm.
15*15 = 225 square centimeters
Each side is the square root of 225 equals 15cm and its perimeter is 4*15 = 60cm
around 33.94 centimeters
52 cm
Perimeter = 15+15+35+35 = 100 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.
The perimeter of a 900 square centimeter square is 120 centimeters.
20
128 cm
2+2+15+15=34cm
31 centimeters
The square root of 289 is 17 Perimeter = 4*17 = 68 cm