Assembled building block for forming various geometrical shapes with corners having angles 60 degrees, 90 degrees and 120 degrees

An assembled building blocks formed by nineteen unit assemblies and a plurality of round holes for forming various geometrical shapes having corners of angles 60 degrees, 90 degrees and 120 degrees, characterized in that:

• the unit assemblies are formed by 1 small unit and 3 to 6 small units integrally, there are nineteen sub-combinations in the assembling of each unit assembly which are:
• (1) unit assembly formed by three small units:
• first unit assembly 1:
• three small units are vertically and horizontally connected equilaterally as a “” shape;
• second unit assembly 2:
• three small units are horizontally connected as a “-” shape;
• (2) unit assembly formed by four small units:
• third unit assembly 3:
• four small units are vertically and horizontally connected as a “□” shape;
• fourth unit assembly 4:
• four small units are vertically and horizontally connected as a “L” shape;
• fifth unit assembly 5:
• four small units are vertically and horizontally connected as a “⊥” shape;
• sixth unit assembly 6:
• four small units are vertically and horizontally connected as a “” shape;
• seventh unit assembly 7:
• four small units are and horizontally connected as a “—” shape;
• (3) unit assembly formed by five small units:
• 8th unit assembly 8:
• five small units are vertically and horizontally connected as a “” shape;
• 9th unit assembly 9:
• five small units are vertically and horizontally connected as a “+” shape;
• 10th unit assembly 10:
• five small units are vertically and horizontally connected as a “” shape;
• 11th unit assembly 11:
• five small units are vertically and horizontally connected as a “⊥” shape;
• 12th unit assembly 12:
• five small units are vertically and horizontally connected as a “␣” shape;
• 13th unit assembly 13:
• five small units are vertically and horizontally connected as a “” shape;
• 14th unit assembly 14:
• five small units are vertically and horizontally connected as a “” shape;
• 15th unit assembly 15:
• five small units are vertically and horizontally connected as a “L” shape;
• 16th unit assembly 16:
• five small units are vertically and horizontally connected as a “” shape;
• (4) Unit assembly formed by six small units:
• 17th unit assembly 17:
• six small units are vertically and horizontally connected as a “” shape;
• 18th unit assembly 18:
• six small units are vertically and horizontally connected as a “” shape;
• (5) Unit assembly formed by one small unit:
• 19th unit assembly 19:
• a small unit as “.” shape. by the unit assemblies 1˜19 to enables with different building block seat, many different large assemblies to be formed.