△さんかく

unclassified

not entirely wrong but not entirely right; so-so; average

Used as a mark for homework, tests, etc., to indicate a borderline or mediocre result, between a circle (correct) and a cross (wrong).

• 先せん生せいが宿しゅく題だいに△を付つけた。

  The teacher marked the homework with a triangle.

• テストの結けっ果かは△だった。

  The test result was a triangle (so-so).