Question

A circle has a radius of 76cm. find the measure of the central angle in radians subtented by the arc of length 201cm.

Answer 1

how to make it in radians?

Answer 2

and what does subtented by an arc means

Answer 3

wat?

Answer 4

what is now the final answer in radians? i already have that kind of answer but i need to do it in radians

Answer 5

why mine is \[(2.64\pi rad)/180 ?????????\]

Answer 6

what should be my final best answer?

Answer 7

how did you get that?

Answer 8

isn't it when you convert degree to radians you multiply it by \[\pi/180????\]

Answer 9

201 : 2pi r = central angle : 2 pi radians

Answer 10

U understand this now?

Answer 11

why did you make it in ratio?

Answer 12

is the answer (2.64πrad)/180 correct?

Answer 13

what is radian?

Answer 14

201 : 2pi r = central angle : 2 pi radians

is where the formula u were given earlier (by Lalaly, I think, he seems to have deleted his responses) comes from.

It says that the ratio of the arc to the circumference is the same as the ratio of the angle to 2 pi radians.

Answer 15

What is a radian?

The circumference is 2 pi r

If you divide the circumference into pieces of length equal to the radius, then each piece is 1 radian.

Answer 16

So 2 pi radians = 360 degrees.

Answer 17

what is your answer?

Answer 18

I think u can work it out for yourself now:-)

Study the information until u r happy.

Answer 19

is this correct 201/76 if not in radian and 2.64 if in radian?

Answer 20

is that correct?

Answer 21

just tell me please

Answer 22

just yes or no

Answer 23

I already said, you need to know that by yourself.

Study the information until u understand it.

Answer 24

Look here as well.

http://en.wikipedia.org/wiki/Radian