This quiz works best with JavaScript enabled. Home > Class 9 > Class 9 Maths Chapter 8 Quadrilaterals – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 9 Maths Chapter 8 Quadrilaterals Quiz 4 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The diagonals of a rhombus A) Never intersect. B) Bisect the opposite angles. C) Are congruent. D) Bisect the sides. Show Answer Correct Answer: B) Bisect the opposite angles. 2. ABCD is a parallelogram. If its diagonals are equal, then the value of angle ABC is A) 90$^{o}$. B) 45$^{o}$. C) 120$^{o}$. D) None of the above. Show Answer Correct Answer: A) 90$^{o}$. 3. Which of the following is not a parallelogram? A) Trapezoid. B) Square. C) Rhombus. D) Rectangle. Show Answer Correct Answer: A) Trapezoid. 4. If the diagonals of a parallelogram are equal, then it is a square A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 5. Two consecutive angles of a parallelogram measures (x + 30) and 2(x-30) respectively. What is the value of x? A) 40. B) 50. C) 60. D) 70. Show Answer Correct Answer: D) 70. 6. The figure obtained by joining the mid-points of a quadrilateral taken in order, is ..... A) A rhombus. B) A rectangle. C) A parallelogram. D) A square. Show Answer Correct Answer: C) A parallelogram. 7. Has only one set of congruent sides A) Square. B) Rectangle. C) Trapezoid. D) Isosceles Trapezoid. Show Answer Correct Answer: D) Isosceles Trapezoid. 8. The Sum of All of the Angles for a Quadrilateral Equals A) 180$^\circ$. B) 270$^\circ$. C) 360$^\circ$. D) 90$^\circ$. Show Answer Correct Answer: C) 360$^\circ$. 9. Diagonals are congruent in all ..... A) Quadrilaterals. B) Rectangles. C) Rhombuses. D) Parallelograms. Show Answer Correct Answer: B) Rectangles. 10. In a parallelogram ABCD, if angle A = 2x + 15$^\circ$, angle B = 3x-25$^\circ$, then the value of x is: A) 32. B) 92. C) 24. D) 38. Show Answer Correct Answer: D) 38. 11. What does it mean when figures are congruent? A) Same shape only. B) Same size and shape. C) Same shape and the lengths of the sides are the same. D) Same amount of sides. Show Answer Correct Answer: C) Same shape and the lengths of the sides are the same. 12. The opposite angles of a parallelogram are ..... A) Complementary. B) Congruent. C) Supplementary. D) Perpendicular. Show Answer Correct Answer: B) Congruent. 13. A rhombus can be a square. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 14. The quadrilateral formed by joining the mid-points of a quadrilateral PQRS, taken in order is a rectangle if ..... A) PQRS is a rectangle. B) PQRS is a parallelogram. C) Diagonals of PQRS are perpendicular. D) Diagonals of PQRS are equal. Show Answer Correct Answer: C) Diagonals of PQRS are perpendicular. 15. Name the quadrilateral where diagonals bisect each other at 90$^\circ$ A) Rectangle and Square. B) Rectangle and Rhombus. C) Square and Rhombus. D) Trapezium. Show Answer Correct Answer: C) Square and Rhombus. 16. In a parallelogram, how would you describe the diagonals? A) They are congruent. B) They bisect each other. C) They are parallel. D) They are perpendicular. Show Answer Correct Answer: B) They bisect each other. 17. Which of the following quadrilateral is not a rhombus? A) All four sides are equal. B) Diagonals bisect each other. C) Diagonals bisect opposite angles. D) One angle between the diagonals is 60 degree. Show Answer Correct Answer: D) One angle between the diagonals is 60 degree. 18. Opposite angles of a parallelogram are equal in measure A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 19. The measure of each exterior angle of a regular polygon of 36 sides is ..... A) 10$^\circ$. B) 100$^\circ$. C) 90$^\circ$. D) 36$^\circ$. Show Answer Correct Answer: A) 10$^\circ$. 20. A parallelogram with all angles 90 is a- A) Square. B) Rhombus. C) Rectangle. D) Trapezium. Show Answer Correct Answer: C) Rectangle. 21. Quadrilateral formed by joining the mid-points of quadrilateral is ..... A) Rectangle. B) Square. C) Parallelogram. D) Rhombus. Show Answer Correct Answer: C) Parallelogram. 22. If an angle of a parallelogram is two-third of its adjacent angle, the smallest angle of the parallelogram will be A) 54. B) 108. C) 81. D) 72. Show Answer Correct Answer: D) 72. 23. Which of the following quadrilaterals has four right angles and 4 congruent sides? A) Parallelogram. B) Rectangle. C) Rhombus. D) Square. Show Answer Correct Answer: D) Square. 24. A triangle and a rectangle have the same height and base length, so the area of the triangle will be ..... A) Equal to the area of the rectangle. B) Half the area of the rectangle. C) Greater than the area of the rectangle. D) A quarter of the area of the rectangle. Show Answer Correct Answer: B) Half the area of the rectangle. 25. Two consecutive angles of a parallelogram measures (x+30) and 2(x-30) respectively. What is the measure of the smaller angle? A) 20. B) 40. C) 60. D) 80. 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