Question

An construction company poured a cylindrical shaped concrete column 15 feet long with a radius of 3 feet. How much concrete did it take to make the column, in terms of π?

Answer 1

Answer:

$135\pi\ ft^3$

Step-by-step explanation:

we know that

The volume of a cylinder (concrete column) is equal to

$V=\pi r^{2}h$

we have

$r=3\ ft\\h=15\ ft$

substitute

$V=\pi (3)^{2}(15)$

$V=135\pi\ ft^3$