Math question: How much more rope?

[89th]

If you tied a rope around the earth along the equator. And you then needed to raise it up by 1-foot the whole way around, how much more rope would you need?

[Horace]

Should have posted this on pi day. Circumference is pi * diameter right? Then diameter increases by 2 feet.

[89th]

Yes, and while you are basically there, now you need to mention how much more rope is needed?

[jon-nyc]

About two meters.

[89th]

Correct, and the funny thing is if you did the same question about a basketball instead of the earth, it would still be two meters. Math is c00l.

[Horace]

@89th said in Math question: How much more rope?:

Yes, and while you are basically there, now you need to mention how much more rope is needed?

I am an educator and I always leave room for the reader to have their own aha moment.

[jon-nyc]

It’s a great counterintuitive result. Fun!

[bachophile]

Here is all u need to know about rope

http://www.capitalpunishmentuk.org/Aberdare Report.pdf

[Doctor Phibes]

I don’t understand how increasing the height by one foot, then doing math, gives you an answer in meters

[89th]

@Doctor-Phibes said in Math question: How much more rope?:

I don’t understand how increasing the height by one foot, then doing math, gives you an answer in meters

It's an American thing.

Link to video

[Doctor Phibes]

@89th said in Math question: How much more rope?:

It's an American thing.

I understand stealing our weights and measures and then pretending that they're your own (despite calling them Imperial), but why change the freaking pint?

[Copper]

https://promoleaf.com/blog/types-of-beer-glasses