Casio fx-CG10 Advanced Operation Manual page 4

Investigation 1.1—Homemade Waffle Cones (continued)
d. Write an equation for the volume of the cone in terms of the arc length you
removed.
e. Determine the arc length that must be removed to construct a cone with the
maximum volume.
f. What would be the dimensions of the cone that has a maximum volume?
Construct another cone from a circle of diameter 21 cm, but now construct a cone
with maximum volume.
g. Do you recommend the scholarship committee make waffle cones with these
dimensions? Why or why not?
Fostering Advanced Algebraic Thinking with Casio Technology