So although angles come from the Greeks the 360 degrees comes from Babylonian astronomy. The 360-degree circle worked out great.
Philip Lloyd S Answer To Why Is A Full Circle 360 Degrees Why Not Just A Round Number Like 100 Or Any Other Number Protractor Welding Shop Painting Patterns
The six triangles reassembled as a hexagon also fit inside the circle.
Why is there 360 degrees in a circle. The degree is an arbitrary unit. Basically any division of a circle would work as a system of measurement. Thats how we got a 360 degree circle.
Consequently they divided the circular path into 360 degrees to track each days passage of the Suns whole journey. This probably happened about 2400 BC. I dont know of any definitive answer but James Hopwood Jeans in his 1947 book The Growth of Physical Science page 7 suggests the Babylonians - which used a sexagesimal numeric system - divided the circle into 360 degrees.
So although angles come from the Greeks. Let them create degrees. There are 360 degrees in a circle because there are 360 days in a year.
It also represents the number of days a year and also because 360 is highly composite. Well for starters there are more than 365 days in a year but exactly 360 degrees in a circle. The degree has the advantage that 360 divides evenly by 2 3 4 5 6 8 9 10 making.
360 x 360 129600. Marley23June 17 2003 106am. I was recently wondering why a circle has been divided in to 360 degrees.
The Babylonians assigned 360 degrees to circles as an aid to time tracking. One thought is that 360 has more factors than 365 for divisions. The perimeter of the hexagon is six times the length of the radius.
The Length of the Year Even if you have absolutely no idea right at this instant why there are 360 degrees in a circle I bet that if you stop and think for. Im not a historian to the point to judge which came first. As to the question of why 360 degrees was chosen heres what we think happened.
Around 1500 BC Egyptians divided the day into 24 hours though the hours varied with the seasons originally. You can find the written tutorial herehttpwwwninetyeast. Why Is A Full Circle 360 Degrees Instead Of Something More Convenient Like 100.
I have a small inkling that it has to do with easy conversion or usage with radians or grads. A full circle is 360 degrees because of the Babylonians usage of the sexagesimal system number of days in a year and also because 360 is highly composite. The sumerians used three different angle systems.
A real circle is stated as having a diameter of 60 ells the value of pi rounded to 3 gives a circumference of 180 ells of 24 digits each. The division is sumerian. A full circle is 360 degrees because the Babylonians used the sexagesimal system.
You have 360 in a circle. He needed a method of measuring angles and naturally followed the Babylonian division of the ecliptic into 360 degrees dividing the circle the same way. When I asked my physics teacher he could not think of an answer.
Why is there 360 degrees in a circle. But would think they are not related. The hexagon fits exactly inside the circle so the circle is circumscribed outside the hexagon and the hexagon is inscribed inside the circle.
He needed a method of measuring angles and naturally followed the Babylonian division of the ecliptic into 360 degrees dividing the circle the same way. Why Is A Full Circle 360 Degrees Instead Of Something More Convenient Like 100. Using a 360-day calendar made it easy to associate each day of the year with an otherwise arbitrary partition of the circle creating a convenient visual representation.
The Egyptians loved perfect triangles and exactly six of them fit into a circle. Why there are 360 degrees in a circle. Greek astronomers made the hours equal.
Therefore six triangular slices of 60 degrees each made for a. A full circle is 360 degrees because of the Babylonians usage of the sexagesimal system number of days in a. Mark Ronan is Honorary Professor of Mathematics at University College London.
If each of those points represents the intersection of a circle with the plane then you will have 360 circles perpendicular to the plane each with 360. His guess is that it probably has to do with people long ago using the base 6 number system. This is a simple maths tutorial answering the question of why there are 360 degrees in a circle.
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