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Respuesta :

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Answer:

volume of cylinder

= area of circle × height

= πr² × h

= (22/7 × 9²) × 20

= 254.57 × 20

= 5091.4 cm³

Answer:

5089.4 cm³

Step-by-step explanation:

The volume (V) of a cylinder is calculated as

V = Ah ( A is the area of the base and h the height ), thus

V = πr²h

   = π × 9² × 20 = π × 81 × 20 = 1620π ≈ 5089.4 cm³ ( to 1 dec. place )