One link in a chain was made from a cylinder that has a radius of 2.5 cm and a height of 22 cm. How much plastic coating would be needed to coat the surface of the chain

link? Use 3.14 for n

251.2 cm?

314 cm

345.4 cm2

471 cm

Respuesta :

Answer:

345.4 cm²

Step-by-step explanation:

We solve this above question using the formula of Lateral surface area of a cylinder because we are asked to find the amount of paint that would only cover the body of the cylinder not the total cylinder

Lateral surface area of a cylinder = 2πrh

= π = 3.14

r= 2.5cm

h = 22 cm

Hence:

2 × 3.14 × 2.5 × 22

= 345.4cm²

Therefore, the amount of plastic coating that would be needed to coat the surface of the chain is 345.4 cm²

Answer:

C:  345.4 cm^2

Step-by-step explanation:

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