what's the differences between radian and degree of an angle ??

Question

anonymous · Answer

they are same but different notation.

anonymous · Answer

see it's just depends on how you like to write it.

callisto · Answer

Sorry, different values for the same angle

callisto · Answer

pi radians = 180 degrees ...

anonymous · Answer

i mean for the concept,,, what's the differences ??

anonymous · Answer

$$2\pi=360^0$$

anonymous · Answer

Nothing it just depends on the application you are doing. In circles it is much easier to use pi because it relates a lot with the circle.

callisto · Answer

Radian is the ratio between the length of an arc and its radius
degree is a measurement of plane angle
Just from wiki, not sure if it helps :|

anonymous · Answer

radian is related to circumference of a circle or arc length,,, how it's manipulated r or d to be arc,,,,
but how u express degree related to arc as directly ?

anonymous · Answer

$$arc=2\pi r$$
$$\pi=180^0$$
replace and you get

$$arc=2(180^0)r=360^0 r$$

so Now you relate the arc with the how much of the circle you have. For example a circle has 360 degrees so if you solve for the whole circle are you multiply 360 degrees to r

if you have half of the circle then you multiply 180 degrees with the radius and so on

But degrees is not a real value in the sense that it's not a measurement of length so find the arc you convert it to radians.

anonymous · Answer

that's the different concept between degree and radian,,,,, u can read calisto's answer

callisto · Answer

I don't know if this helps: http://en.wikipedia.org/wiki/Radian#Conversions

anonymous · Answer

oke,,,,,thanks all of u'r answer,,,,, it all of them was helped me