Jump to content
Science Forums

Fun math thing: how big will the rolled madrass be?

Recommended Posts

So when planning for a camping trip, I ended up wondering how one calculates the diameter of a rolled camping madrass will be when you know the length,height (and width) of the flattened madrass.

What I find fun is that I had it in the back of my back a few days, never actually sat down to analyze, till I found the solution. Of course waaaay easier (and even straight forward once one properly thinks about it) than I ever thought at first 🙂

Not spoiling you the fun, but for dimension 2*200*80 answer is 15.96

Link to post
Share on other sites

Mine is:

Get area of side of madrass then find radius of circle with same area.

so 2*200=r^2*2pi -->r=(200/pi)^(0.5) --->
>>> np.sqrt(200/3.14)

But asked ofor diameter so:

>>> np.sqrt(200/3.14)*2


Link to post
Share on other sites

What do I win?


By the way, since you are an admin can you please look into why LaTex formulas do not render here?

If you click on the <> symbol you get a box with a drop down menu where LaTex can be selected, but I am not sure what tags to use to get LaTex to work. I tried the usual [math] and [latex] and also $$ and $ as well as a couple of others and it doesn't work. Is the LaTex plugin actually installed?



Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...