???????????? yu hav a SERKEL ????????
??????? & yu wanna find the rim-leng ???????
????? & yu kut a pie outa serkel ????
with angel at senter=50 deg ????? & that giv ark leng=4 inch ????
360 deg / 50 deg=7.2
7.2*4=28.8 inch
????? perhaps sumwon mite be interested in radius or wide ????