<prompt> Lebitso la theorem le bolelang hore li-angles tsa kgutlotharo kamehla li kopana ho fihla ho 180?nan  <response>: Instruction in English: What is the name of the theorem that states that a triangles angles always add up to 180? . Response in English: The theorem you are referring to is called the Triangle Sum Theorem. This theorem states that the sum of the three interior angles of a triangle is always equal to 180. . Response in Sesotho: Khopolo eo u buang ka eona e bitsoa Triangle Sum Theorem. Khopolo ena e bolela hore kakaretso ea li-angles tse tharo tse ka hare tsa khutlotharo e lula e lekana le 180. 