Answer:
Step-by-step explanation:
Given: The diameter of funnel = 6 inches
Then, Radius =
Height = 4.5 inches
The formula to find the volume of a cone is given by :-
i.e.
Hence, the volume of the funnel =
V=PI x r^2 x (h/3)
3.14 x 3^2 x (4.5/3) = 42.39 in^3
256 * 40 = 10,240 cm needed
so if the balls are 30 cm each then
10, 240 divided by 30 = 341.3
so the teacher will need 342 balls.
Answer: 78
Since the rest of the answer are too small to be the length.