?????????? yu want how wide is SEKTER av a serkel ????? . . serkel rim leng=pi*diameter=3.14159*3=9.42477795 . . . kut in intu 8 sekters, eech sekter will hav 9.4/8=1.178097244 along its kerv. . . But thats not how wide. wide=strate line from rite side tu left side. . . angel=360deg/8=45 deg. Make triangel with small angel=45 deg. . . & 2 sides=radius av serkel=1.5 meter. . . . hite=1.5*kosine(22.5deg) & (wide/2)=1.5*sine(22.5 deg) . . . wide/2=1.5*0.382683432=0.574025148 . . . wide=1.148050297