$ sudo apt-get update
$ sudo apt-get install root-plugin-geom-geombuilder 

root-plugin-geom-geombuilder is installed in your system.

Make ensure the root-plugin-geom-geombuilder package were installed using the commands given below,

$ sudo dpkg-query -l | grep root-plugin-geom-geombuilder *

You will get with root-plugin-geom-geombuilder package name, version, architecture and description in a table

root-plugin-geom-geombuilder package basic information: