A side of an equilateral triangle is 24 inches. The midpoints of its sides are joined to form an inscribed equilateral triangle. If this process is continued without end, find the number of inches in the sum of the lengths of the altitudes of all of these triangles.

1.) 900 = 3(300)
Therefore, pyramid B is 3 times bigger than pyramid A.

2.) Volume of silo = volume of cylinder + volume of hemisphere = 22/7 x 8^2 x 172 + 2/3 x 22/7 x 8^3 = 34,597.57 + 1,072.76 ≈ 35,669 ft^3

3.) Required volume = volume of cone - volume of bubble gum = 1/3 x 22/7 x (1.75)^2 x 3.5 - 4/3 x 22/7 x (0.25)^3 = 11.229 - 0.065 = 11.164 ≈ 11.15