Mathematics, 30.12.2020 01:10, shariaharper

20. Diagonals of an isosceles trapezoid are perpendicular. Never

21. Adjacent sides of a rectangle are congruent.
Sometimes

22. One pair of opposite sides of a trapezoid are congruent.
Sometimes

23. Sides of a rhombus are congruent.
Answer :always

24. Diagonals of a square are perpendicular.
Always
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20. Diagonals of an isosceles trapezoid are perpendicular. Never

21. Adjacent sides of...