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A cylindrical fish can, with a bottom diameter of 20 cm and a height of 8 cm, has trademark paper on the side. How many square centimeters is the area of trademark paper?
1
20×3. 14×8
=62.8×8
=50.24 square centimeters
It is about 50.24 square centimeters.
2.
50.24×40=20096 (square centimeter)
It takes about 20,096 square centimeters of wrapping paper.