There are many free math courseware here, and of course there are solid geometry courseware, and they are made with Flash:: 8088/softlist/catalog _ 25 _ softtime _ desc _1.html.

By the way, I would like to introduce some math websites to you:

Middle School Mathematics Network > & gtmaths.com/

Partly free

High School Mathematics Courseware Network > & gtwww.844844.com

Features: Some are free.

Often search online, that is, often use Baidu. Baidu knows everything.