One link in a chain was made from a cylinder that has a radius of 3 cm and a height of 25 cm. How much plastic coating would be needed to coat the surface of the chain link? Use 3.14 for π.
251.2 cm2
314 cm2
345.4 cm2
471 cm2

Question

One link in a chain was made from a cylinder that has a radius of 3 cm and a height of 25 cm. How much plastic coating would be needed to coat the surface of the chain link? Use 3.14 for π.
 251.2 cm2
 314 cm2
 345.4 cm2
 471 cm2

Seafoam · Answer

471

AZ · Answer

so surface area of a cylinder mhmm

AZ · Answer

ohh that's why I wasn't getting the answer, we don't include the circular bases of the cylinder

so just 2*pi*r*h

so yeah your answer is correct

Seafoam · Answer

Oh ok

AZ · Answer

it's because the surface area of it covering one link in the chain

so it can't have the bases since there's multiple links in the chain

Seafoam · Answer

Oh wait thats all