세모인지

In a sentence

• 그 모양이 세모인지 확인해 주세요.

  Please check if that shape is a triangle.

  In this sentence, '세모인지' is used to inquire if something is triangular in shape, using '인지' as a question suffix meaning 'whether'.

• 이 종이가 세모인지 자가 없어?

  Don't you have a ruler to see if this paper is triangular?

  Here '세모인지' examines if the paper takes a triangular form, reinforcing the inquiry with '인지'.

• 이 게임에서 도형이 세모인지 파악해야 돼.

  In this game, you must determine whether the shape is a triangle.

  The phrase '세모인지' is part of a requirement to determine the triangularity of game shapes, showcasing '인지' in a decision-making context.