What is the surface area of a cylindrical ring if its outside diameter is 16mm and its inside diameter is 10mm?

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Answer

1014793

2026-04-05 02:25

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surface area = (pai) x (DO 2 - DI 2)/4 = 3.14 (16 x 16 - 10 x 10)/4

= 3.14 x 156 mm = 489.84 square mm

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