Question

A feeding trough is made by hollowing out half a log. the trough is shaped like a 1/2 of cylinder. it is 5 feet long and has an interior diameter of 1.5 feet. what is the volume of oats that will fill the trough?

Answer 1

V = ¹/₂πr²h
V = ¹/₂(3.14)(0.75)²(5)
V = ¹/₂(3.14)(0.5625)(5)
V = ¹/₂(3.14)(2.8125)
V = ¹/₂(8.83125)
V = 4.415625 ft³