Question 1128563
Find the circumference
{{{ C = 2*pi*r }}}
{{{ C = 2*pi*30 }}}
{{{ C = 60pi }}}
{{{ ( 18pi )/( 60pi ) = 3/10 }}}
{{{ .3*2pi = .6pi }}} radians central angle
This is also:
{{{ .3*360 = 108 }}} degrees