cocoarelys2981 cocoarelys2981
  • 12-05-2022
  • Mathematics
contestada

A cylinder has a circumference of 16pi inches and a height of 20 inches. what is the surface area of a cylinder in square inches?

Respuesta :

hstephenson801 hstephenson801
  • 12-05-2022

Answer:

1407.43

Step-by-step explanation:

The eqaution for surface area of a cylinder is 2πr+2π[tex]r^{2}[/tex]'

but you already got the circumference so you work backwards

16pi/pi=16

16/2=8

r=8

h=20

So you plug it into the eqaution

2π8*20+2π8^2=1407.43

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