Similar to 初等幾何学

Pitot theorem

Tetrahedron

Medial triangle

Inscribed circle

Skew lines

Haruki's Theorem

Power of a point

Euclidean geometry

Cathetus

Hexagon

frame

29th century BC

28th century BC

27th century BC

26th century BC

25th century BC

24th century BC

23rd century BC

22nd century BC

20th century BC

19th century BC

17th century BC

16th century BC

15th century BC