2006-11-24 19:26:49 · 8 answers · asked by Steven A 1 in Science & Mathematics ➔ Mathematics
RADIAN - Rats And Dogs In Americans' Noses
Itis a measure of angle in a circle.
180/pi
2006-11-24 19:38:03 · answer #1 · answered by Anonymous · 0⤊ 0⤋
A "radian" is that angle subtended at the centre of a circle by an arc whose length is equal to the radius of the circle and that 360* is = 2pi radians
2006-11-24 19:47:39 · answer #2 · answered by Anonymous · 0⤊ 0⤋
draw a circle with a radius of R.
the arc with a length of R is one 1 Radian by definition.
2006-11-24 19:45:25 · answer #3 · answered by gjmb1960 7 · 0⤊ 0⤋
a radian is a measure of an angle
1 rad = 180/Ï degrees
______________________________
To make it easier,
draw a circle
call its center point C
select a point on the circle
call that point point A
now, measure a length on the circumference of the circle, from point A, until you reach a length equal to the radius.
You will end up in a point.
call that point point B
Thus, angle ACB measures 1 radian.
^_^
2006-11-24 20:11:33 · answer #4 · answered by kevin! 5 · 0⤊ 0⤋
360/2 * pi = 360 / 2*3.1416 = 57° 18'
It is a part of a circle's circumference with length equal to 1 radius
2006-11-24 21:46:04 · answer #5 · answered by maussy 7 · 0⤊ 0⤋
The second part of Doug's answer is the correct definition, and lots of other answerers gave it too. The other information they gave is useful and maybe helps you get a handle on it, but only this one is the definition.
2006-11-24 20:54:56 · answer #6 · answered by Hynton C 3 · 0⤊ 0⤋
1 radin = 180/Ï degrees, or about 57.295779513082320876798154814105 degrees.
If you measure the radius of a circle along it's circumference, it subtends an angle of 1 radian.
Doug
2006-11-24 19:31:27 · answer #7 · answered by doug_donaghue 7 · 1⤊ 0⤋
The radius of a circle put on it's outside. 6 and a little more will fit.
2006-11-24 20:26:53 · answer #8 · answered by anonymous 4 · 0⤊ 0⤋