The circumference of the bottom surface of the conical die is 12.56cm and the height is 6cm. Cut the conical die into the same two halves along the height direction.
The problem is12.56 ÷ 3.14x6 ÷ 2x2 = 24 square centimeters.
The circumference of the bottom surface of the conical die is 12.56cm and the height is 6cm. If the conical die is cut into the same two halves along the height direction, its surface area will increase by 24 square centimeters.