関連ワード:
are adjacent sides of a trapezium equal are opposite sides of a trapezium equal are adjacent sides of a trapezium supplementary are opposite sides of a trapezoid equal are the opposite sides of a trapezium equal in length are opposite sides of isosceles trapezium equal opposite sides of a trapezium are equal or not opposite sides of a trapezium are equal true or false are diagonals of a trapezium equal are diagonals of a trapezium equal in length
