A dinner plate has a circumference of 106.76 cm. What is the area of the dinner plate? Use = 3.14.

C=2pr, r=c / (2p)

a=pr^2, using r found above we get:

a=p (c^2 / (4p^2))

a = (c^2) / (4p), since c=106.76 and we approximate pi as 3.14

a = (106.76^2) / (4*3.14)

a=11612.2176/12.56 cm^2

a≈924.54 cm^2 (to nearest one-hundredth of a square cm)