difference between relative, relation

relative - noun(төрөл садан)Relatives are the people in your family, either direct or indirect. Your cousins, brothers, sisters, aunts, etc. are all your relatives.
1 a person who is in the same family as someone else
      ---- a close/distant relative
2 a thing that belongs to the same group as something else
      ---- The ibex is a distant relative of the mountain goat.
relation - noun(хамаатан)you would not use this when speaking about your family.
1 [uncountable, countable] the way in which two or more things are connected
      ---- the relation between rainfall and crop yields
2 [countable] a person who is in the same family as someone else
      ---- a close/near/distant relation of mine

difference between relation and relative

• I'll stick with the family context as a base.
  
  Relatives are the people in your family, either direct or indirect. Your cousins, brothers, sisters, aunts, etc. are all your relatives.
  
  "Relations" has myriad context. Generally, you would not use this when speaking about your family.

• both are used. To me, relations is a bit more formal than relatives.

• I don't think relation is used much in this sense outside the expression friends and relations, which distinguishes between informal and family ties.
  
  I don't think there's much difference between my relatives and my relations, though relatives do sound closer, perhaps.