Question

The radius of a cylindrical construction pipe is 2ft . If the pipe is 21ft long, what is its volume?

Answer 1

Answer:

$264ft {}^{3}$

Step-by-step explanation:

For cylindrical construction pipe,

$h = 21ft \\ r = 2ft$

Volume of Cylinder

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

$= \frac{22}{7} \times 2 \times 2 \times 21 \\ \\ = 22 \times 4 \times 3 \\ = 11 \times 24 \\ = 264ft {}^{3}$

thus, the volume of cylindrical construction pipe is 264ft^3