Problema Solution
Michelle, the pastry chef, is putting a ring of decorative shells around the base of the six cakes. If each cake has a diameter of 12 inches, what is the total length of yellow decorative shells used on all six cakes?
Answer provided by our tutors
The length of the decorative shells is basically the "circumference" of the ring.
Circumference = pi x diameter
Circumference of one cake = pi x 12 or 12pi
Thus, for the 6 cakes, the total length or circumference is 6(12)pi or 72pi which is approximately 226.19467 inches.