Dereks dinner plate has a diameter of about 9 inches. Find its circumference and area.

Circumference = pi x diameter

diameter = 9

circumference = 9pi or 9 x 3.14

area = pi x radius ^2

radius = 1/2 diameter

radius=4.5

pi x 4.5 ^2

4.5 x 4.5 = 20.25

20.25 x 3.14

area = 64 circumference = 28