Sherrell mowed 1/15 more than Trace because when you convert the fractions to equivalent fractions with the same denominator, you get 6/15 and 5/15.
5.55% = 1/18
So, cut the cake into 18 equal squares.
The cake is twice as long as it is wide, so that means cut half the cake (6 3/4 x 6 3/4) into 9 pieces, each with a side of 1/3 * 6 3/4 = 2 1/4 inches.
R= diameter/2
answer: 8 units
