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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.

Is the landlord satisfied?