2006-11-30 11:23:16 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
first off 1 rad=360degree divided by 6.28=57.3
pi=3.14 2pi rad=360 degree
therefore 12 rad= 12*57.3 =687.6 degree rounded to 688 degree
2006-11-30 12:01:23 · answer #1 · answered by hitman812001 1 · 0⤊ 0⤋
This isn't too hard. First you need to know the definition of a radian. Remember the formula for the circumfrence of a circle?
circumfrence = 2*pi*r
r is the radius, and a radian is the same as ONE radius.
So a radian is 360 degrees (one time around the circle) divided by 2*pi
12 radians is therefore 360/(2*pi)*12.
2006-11-30 11:26:58 · answer #2 · answered by firefly 6 · 0⤊ 0⤋
2Ï radians = 360°
12 rad(360°/2Ï rad) =
6*360°/Ï =
687.55°
2006-11-30 11:29:23 · answer #3 · answered by Helmut 7 · 0⤊ 0⤋
To covert from Rad to Deg just multiply Rad * 180/Pi
To convert Deg to Rad just multiply Deg * Pi/180
2006-11-30 11:27:53 · answer #4 · answered by Texan Pete 3 · 0⤊ 0⤋
there are 2Ï radians in a circle
there are 360° in a circle
12/2Ï=x/360
x=12*360/2Ï=687.549°
2006-11-30 11:26:21 · answer #5 · answered by yupchagee 7 · 0⤊ 0⤋
Converting radian to degrees
12(180/Ï) =
2160/Ï =
2160/ 3.141592654 =
687.5493542°
The answer is 687.5 ° Rounded to one decimal point.
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2006-11-30 11:43:03 · answer #6 · answered by SAMUEL D 7 · 0⤊ 0⤋