Often, old instruments don't give accurate results, so it's better to buy a new one for yourself instead of using the one your mother or uncle used. [title] Before buying a geometry box, check if it contains all the geometrical instruments you need.
[header] How to prepare for a mathematical test on constructions [title] Always use new geometrical instruments. [step] It is very important to use only new instruments. It can be three to four years old, but not older than that.