Question

The figure shown is a composite figure. What is its volume? (Use 3.14 for π.)

Answer 1

for the cylinder u have
\[ \pi\cdot 4^2\cdot 20 \]

Answer 2

for the cone over the cylinder
\[ \frac{1}{3}\cdot\pi\cdot4^2\cdot12 \]

Answer 3

just add both