SOLUTION: [ I need to know the surface area (in square feet) of a cylinder 5 feet in diameter and 12 feet long ]

Algebra ->  Volume -> SOLUTION: [ I need to know the surface area (in square feet) of a cylinder 5 feet in diameter and 12 feet long ]      Log On


   



Question 825057: [ I need to know the surface area (in square feet) of a cylinder 5 feet in diameter and 12 feet long ]
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
---
each cap:
a = pi*r*r
---
side:
A = 2*pi*r*h
---
r = d/2
r = 5/2
r = 2.5 ft
---
h = 12 ft
---
total area:
2a + A
2*pi*r*r + 2*pi*r*h
2*pi*r*(r + h)
2*3.141592653589793*2.5*(2.5 + 12)
---
answer:
227.7655 sq.ft
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php