1. A cylindrical tea bucket has a trademark paper on the side. The bottom radius of the cylinder is 5 cm and the height is 20 cm. The area of ??the trademark paper is 628 square centimeters and the volume of the tea bucket is 785 cubic meters. centimeter. The analysis is as follows:

1. Trademark area: two times five times three point one four times twenty equals 628 square centimeters

2. Volume: three point one four times Five times five times twenty equals 785 cubic centimeters.

A cylinder is a geometric body formed by taking the straight line of one side of the rectangle as the axis of rotation and rotating the other three sides around the axis of rotation. It has two circular bottoms of the same size and parallel to each other and a curved side. Its side unfolds into a rectangular shape.