help me with the volume
split it into the 2 oblongs. The bottom oblong volume is 12 * 20 *10 and the other oblong volume is 10 * 12 * 35. Now you simply add them together to find the total volume. Hope this helps, comment with questions.
That's just two rectangular prisms glued together. The one standing up has dimensions of 10 x 35 x 12 m. The one laying down has dimensions of 10 x 12 x 20 m. The volume of one rectangular prism is (length) x (width) x (height). All you have to do is find the volume of the one standing up, then find the volume of the one laying down, then addum up.