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Jack1
 one year ago
odd question:
Why are there 360 degrees in a circle? ... I mean... why 360 specifically? why not 100? or 400? is there a mathy reason why they picked this number? (like something to do with pi or something)?
Jack1
 one year ago
odd question: Why are there 360 degrees in a circle? ... I mean... why 360 specifically? why not 100? or 400? is there a mathy reason why they picked this number? (like something to do with pi or something)?

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ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.7Other than the fact that 360 has so many divisors, there is no mathematical reason for 360. You may want to review history of math though...

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1good question  but I dont think its anything to do with pi

Jack1
 one year ago
Best ResponseYou've already chosen the best response.1k, so it's not a special ration or golden ratio or anything like that? just: we picked 360... and we've always done it this way...?

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.7360 is a highly composite number, thats good enough for greeks those days i guess

Jack1
 one year ago
Best ResponseYou've already chosen the best response.1ok, cheers all, was just ... pondering ;)

horsegirl27
 one year ago
Best ResponseYou've already chosen the best response.3Very interesting question. I find it quite intriguing now and I actually think I might do some research to find out...

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0That's a convention, like why \(0!=1\) why \(x^0=1\) and ...

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1@mukushla Those conventions are there for a reason though. If they're not introduced, then consistency will be broken.

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1Allow me to introduce a relatively unknown unit of angles which, unlike degrees, makes sense. https://en.wikipedia.org/wiki/Radian

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1I heard that long time ago, Mathematicians wanted to know how to link the straight measurement with the curve one. They know that the unit of straight line is 1; how about the unit of the curve? They drew out a circle with radius 1 and straight it out, the length of the curve is exactly 2pi. The experiment was repeated with the other radius and the constant popped out was pi. hihihi.... hope it helps

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.7@Jack1 you might be interested in pondering over why 1 feet = 12 inch

Jack1
 one year ago
Best ResponseYou've already chosen the best response.1lol, imperial "feet" measurement is based on some king's foot size, yeah?

horsegirl27
 one year ago
Best ResponseYou've already chosen the best response.3I learned in 3rd grade it was based on some king's foot size

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1Its interesting about the grad as a unit of angles  it used to be included on the older calculators but not on the newer ones.

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1I think it originated in France.

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1400 is obviously less composite than 360

Jack1
 one year ago
Best ResponseYou've already chosen the best response.1that's interesting about grads tho @welshfella 1 grad = pi/200

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1must look for a website

Jack1
 one year ago
Best ResponseYou've already chosen the best response.1just for 1x question: srsly awesome turnout everyone, props hey ;)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.7i love this picture that tells why radians are beautiful dw:1436016853751:dw

Jack1
 one year ago
Best ResponseYou've already chosen the best response.1awesome visual @ganeshie8 ummm... @welshfella sorry man, ur link goes nowhere?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1https://en.wikipedia.org/wiki/Gradian try that one

ParthKohli
 one year ago
Best ResponseYou've already chosen the best response.1Gradian makes a little more sense since it defines a right angle as 100 gradians.

Jack1
 one year ago
Best ResponseYou've already chosen the best response.1ok, haven't found any solid leads, but found a few articles saying its because in like 3000BC, the summarians or mesepetomians had a circular calendar for the year, based on 12 months of 30 days 12x 30 = 360 = 1 year (ish) not sure how accurate or historic it is... but there u go http://usatoday30.usatoday.com/news/science/wonderquest/20020621circle.htm
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