What is the main function of isometric sketches?

Related questions

1. What is rapid sketching?
2. Is a sketch a drawing?
3. Is it harder to draw or paint?
4. Do you need to draw to paint?
5. What is design sketch?
6. How are technical sketches and artistic sketches similar?
7. How are sketches useful?
8. Why do we study freehand sketch?
9. What is sketching in art?
10. Is isometric drawing true 3d drawing?

Tags

1. #objects
2. #provide
3. #drawings
4. #angles
5. #their
6. #drawn
7. #systematic
8. #degree
9. #isometric
10. #vertical
11. #position
12. #dimensional
13. #include
14. #three
15. #horizontal