Erika B. answered • 03/22/20

Graduate Student Able to Tutor in Most Health Sciences and Maths

The ribbon length around the dish can also be labeled the circumference. The equation for circumference is C= ∏d or Circumference is equal to pi x diameter.

You can use 3.14 as pi and the diameter is 3 inches so your equation would read Circumference = 3.14 x 3

Circumference= 9.42 inches

So the ribbon would need to be 9.42 inches to wrap around the pie dish.