Question

The figure given below has the total length 20cm height and common diameter 6cm. Find the volume of the figure.

Answer 1

volume of solid

= \(\frac{2}{3}\pi r^3+r^2h+\frac{1}{3}\pi r^2h\)

= \(\frac{2}{3}\pi\times3^3+\pi\times3^2\times12+\frac{1}{3}\pi\times3^2\times5\)

= \(18\pi+108\pi+15\pi\)

= \(141\pi\) cm³