The expanded side area of a cylinder is a square. The height of the cylinder is 6.28 cm. Then the circumference of the bottom surface of the cylinder is several cm, and the diameter of the bottom surface is 10 cm

The expanded side area of a cylinder is a square. The height of the cylinder is 6.28 cm. Then the circumference of the bottom surface of the cylinder is several cm, and the diameter of the bottom surface is 10 cm

/=Divide
10 / 2 = 5 (CM) 6.28x5 = (self calculation)