Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

mondalabhilash

  • 3 years ago

If the volume of a sphere increases by 72.8%, then its surface area increases by how much and how ........

  • This Question is Open
  1. mayankdevnani
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    The area will increase by ((1+.728)^(2/3)-1)*100% can you solve it? @mondalabhilash

  2. henpen
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[Vol \propto r^3\]\[SA\propto r^2\]

  3. henpen
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[V'=1.728V\] \[r'^3=1.728r^3\] \[(\frac{r'}{r})^3=1.728\] Now find \[(\frac{r'}{r})^2\], and rearrange to get \[r'^2=???r^2\]

  4. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy