Answer:
40.84 inches
Step-by-step explanation:
The dish is a circle. The ribbon "around" the dish would be basically the "circumference" of the circle. The formula is:
[tex]C=2\pi r[/tex]
Where
C is the circumference (what we want)
r is the radius (half of the diameter)
Diameter is given as 13 inch, so
Radius = 13/2 = 6.5 inches
Substituting and calculating, we have:
[tex]C=2\pi r\\C=2 \pi (6.5)\\C = 13 \pi\\C=40.84[/tex]
The answer is 40.84 inches