Find the total surface area of the farm silo in a farmer's field. Use π = 3.14. pls help asap uwu

Question

asked Sep 3, 2021 198k views

2 Answers

Manoli · Answer 1 · 2021-09-07T23:00:18+0000

Answer:

A) 1236 units²

Explanation:

Cylinder = 2
$\pi$ h+2
$\pi$ r²

2(3.14)(7.5)(15)+2(3.14)(7.5x7.5)

706.5+353.25=1059.75

1/2 Sphere = 1/2(4)
$\pi$ r²

2(3.14)(7.5)(7.5)

353.25

TOTAL: 1059.75+353.25=1413

HOWEVER...you need to subtract the top of the cylinder (
$\pi$ r²) 176.625

1413-176.625=1236.375

So the answer would be A. (Silo’s do have a bottom, or else the answer would be D)