# Math Help - polar volume question

1. ## polar volume question mmn 15 3b

find the volume enlosed by $\rho=4cos\phi$ on top and $\phi=\frac{{\pi}}{3}$ on bottom

2. This does not describe a compact space in cylindrical coordinates.

3. I suspect this is actually spherical coordinates judging by your notation in other threads.

Then you have $V=\int_{0}^{2\pi}\int_{0}^{\pi/3}\int_{0}^{4\cos\phi}\rho^2\sin\phi d\rho d\phi d\theta$

4. how to draw the other formula why its half ball
?