Question

What is the volume of grain that could completely fill this silo rounded to the nearest whole number? Use 22/7 for pi.

Answer 1

volume 29

Answer 2

volume of grain = volume of cylinder+volume of hemisphere
= πr^2h + 2/3πr^3 = πr^2 [h + 2/3r]

22 2
= ---- * (6 ft)^2 [168 ft + ----*6ft]
7 3
22
= ---- * 36 ft^2 [168 ft + 4 ft]
7
22
= ---- * 36 ft^2 * 172 ft
7
= 19460.57 ft^3