Question 756429
dia is 12" so radius= 6"=r
cut into 8 equal slices so
a)the angle is 360deg/8=45 deg=45*pie/180 rad [as 180deg=pie rad]
                              =pie/4 rad
b)perimeter of the sector=r+r+1/8*perimeter of the circle
                         =2r+2pie r/8=2r+pie r/4=2*6+3.414*6/4=17.121"
c)area=1/8*area of the circle=pie/8*r^2=pie/8*6^2=14.14 in sqrd