gc9·8 tháng trước·discuss> ruler and compassOr a circle template (rectangular with holes of different sizes). That would aid drawing the small circles, as well as drawing straight edges and right angles. It can be kept in a notebook like a bookmark.
Or a circle template (rectangular with holes of different sizes). That would aid drawing the small circles, as well as drawing straight edges and right angles. It can be kept in a notebook like a bookmark.