Surface Area of Solid Cylinder

  • #1

Homework Statement



A solid cylinder with a radius of 5.0 cm and a length of 10. cm is cut in half lengthwise. What is the surface area of one of the two resulting objects?

Homework Equations



SA = 2(pi)(r2) + L(pi)(r2)

The Attempt at a Solution



Is that the correct formula? If it is I am getting 863 in^3 as an answer :(
 

Answers and Replies

  • #2
lanedance
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the surface area of half the solid cylinder will be the sum of contributions from:
2 x end semi-cricles
rectangle of cut surface
rectangle of one half of cylinder "unrolled"

also why change from cm to in?
 
  • #3
LCKurtz
Science Advisor
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And area isn't measured in units3.
 

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