Question 986753
Compare the arc length to the circumference of the whole circle  (although only a sector is available).


{{{2pi*3=6pi}}}, the full circumference.

Full circle area WOULD be  {{{pi*(3)^2=9pi}}}.


Your sector's area is  {{{(7.7/(6pi))9pi}}}
{{{highlight((7.7)3pi/2)}}}.