Question

what is the measure of the indicated central angle?

Answer 1

@surjithayer

Answer 2

substitute in l=2 pi
r=6 in \[\theta=\frac{ l }{ r }\]
then convert into degrees by the formula \[\pi~radians=180~degree~or 1 ~radian=\frac{ 180 }{ \pi }~degrees.\]

Answer 3

i still dont understand

Answer 4

i have just solved one question ,where l=pi,r=18
here l=2pi,r=6

Answer 5

i am leaving now.