2. B
3. C
3) 1. depth C deepness
2. geometry - G shape
3. width-D wideness
4. diagram - A a drawn plan of something
5. cross-section - F a diagram showing an object's inside
6. schematic - A a drawn plan of something
7. dimensions - B height, width and depth
8. length - E how long something is
4) 1. Exploded views show how machines pieces fit together.
2. Draw the plans at a small scale.
3. The CAD drawing shows the layout of the new machine.
4. Add all sides to calculate the perimeter.