Circumference = 12.6yds find the radius.
circumference= 2 times pi times radiusc=2pirdivide both sides by 2pic/(2pi)=rc=12.612.6/(2 times pi)=12.6/2 times 1/pi=6.3 times 1/pi=6.3/piradius=6.3/pi=aprox (pi aprox 3.14) 2