Cylinder Surface Area Calculator | Base Lateral Total | Elementary Math

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Base = πr² Lateral = 2πrh Total = 2πr² + 2πrh

底面积

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πr²

× 2 个底面

侧面积

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2πrh

侧面展开为矩形

📐 总表面积

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S = 2πr² + 2πrh