This quiz works best with JavaScript enabled. Home > Cbse > Class 8 > Mathematics > Understanding Quadrilaterals > Class 8 Maths Chapter 3 Understanding Quadrilaterals – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Maths Chapter 3 Understanding Quadrilaterals Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The angle sum of a convex polygon with number of sides n is A) (n + 2) 180$^\circ$. B) (2N + 4) 180 $^\circ$. C) (n-2) 180$^\circ$. D) (2n-4) 180 $^\circ$. Show Answer Correct Answer: C) (n-2) 180$^\circ$. 2. The angles of a quadrilateral are in the ratio 2:3:5:8, the angles are? A) 100, 40, 75, 145. B) 40, 60, 100, 160. C) 130, 70, 120, 140. D) 45, 75, 160.80. Show Answer Correct Answer: B) 40, 60, 100, 160. 3. The measures of the three angles of a quadrilateral are 65$^\circ$, 75$^\circ$ and 85$^\circ$. The measure of the fourth angle is A) 65$^\circ$. B) 135$^\circ$. C) 85$^\circ$. D) 75$^\circ$. Show Answer Correct Answer: B) 135$^\circ$. 4. The sides of a pentagon are produced in order and exterior angles obtained are of measures x, 2x, (3x+10), (4x+5) and 5x, what will be the value of x? A) 24. B) 25. C) 26. D) 23. Show Answer Correct Answer: D) 23. 5. The number of sides of a regular polygon, whose each exterior angle has a measure of 45$^\circ$, is A) 10. B) 4. C) 8. D) 6. Show Answer Correct Answer: C) 8. 6. What is the measure of ONE interior angle in a regular pentagon (5-sides)? A) 120$^\circ$. B) 108$^\circ$. C) 180$^\circ$. D) 90$^\circ$. Show Answer Correct Answer: B) 108$^\circ$. 7. Which of the quadrilateral has all the angles at right angles, opposite sides equal and diagonals bisect each other A) Rectangle. B) Rhombus. C) Square. D) None of these. Show Answer Correct Answer: A) Rectangle. 8. The sum of measures of all exterior angles in a polygon is A) 460 degrees. B) 540 degrees. C) 360 degrees. D) 720 degrees. Show Answer Correct Answer: C) 360 degrees. 9. What is the name of a 7 sided polygon? A) Octagon. B) Nonagon. C) Heptagon. D) Hexagon. Show Answer Correct Answer: C) Heptagon. 10. What is the measure of ONE interior angle in a regular hexagon (6 sides)? A) 80$^\circ$. B) 60$^\circ$. C) 120$^\circ$. D) 108$^\circ$. Show Answer Correct Answer: C) 120$^\circ$. 11. The perimeter of a parallelogram whose parallel sides have lengths equal to 12 cm and 7 cm is: A) 19 cm. B) 21 cm. C) 42 cm. D) 38 cm. Show Answer Correct Answer: D) 38 cm. 12. If PQRS is a parallelogram then A) 0. B) 360. C) 180. D) 90. Show Answer Correct Answer: A) 0. 13. Sum of measure of the exterior angles of any polygon is A) 90$^\circ$. B) 180$^\circ$. C) 360$^\circ$. D) None of the above. Show Answer Correct Answer: C) 360$^\circ$. 14. Each of the angles of the square is A) Acute angle. B) Obtuse angle. C) Right angle. D) None of the above. Show Answer Correct Answer: C) Right angle. 15. The number of diagonals of a triangles is ..... A) 1. B) 3. C) 0. D) 2. Show Answer Correct Answer: C) 0. 16. If a convex polygon has n sides, the no. of diagonals is given by? A) N(n-3)/2. B) N(n+3)/2. C) N(n-2)/2. D) N(n-1)/2. Show Answer Correct Answer: A) N(n-3)/2. 17. What is the measure of each interior angle of a regular octagon? A) 180. B) 190. C) 145. D) 135. Show Answer Correct Answer: D) 135. 18. A quadrilateral in which only one pair of opposite sides is parallel is a A) Rhombus. B) Trapezium. C) Rectangle. D) Kite. Show Answer Correct Answer: B) Trapezium. 19. The measure of each exterior angle of a regular polygon of 9 sides is A) 40$^\circ$. B) 60$^\circ$. C) 30$^\circ$. D) 45$^\circ$. Show Answer Correct Answer: A) 40$^\circ$. 20. ABCD is a rectangle. Its diagonals meet at O. OA=(3x+5)cm and OB=(2x+9), what is AC? A) 35 cm. B) 36 cm. C) 37 cm. D) 34 cm. Show Answer Correct Answer: D) 34 cm. 21. A ..... is both 'equiangular' and 'equilateral' A) Regular polygon. B) Triangle. C) Quadrilateral. D) None of the above. Show Answer Correct Answer: A) Regular polygon. 22. The perimeter of a trapezium is 48 cm. If one of the parallel sides is twice the other and the sum of two non parallel sides is 21 cm, find the length of parallel sides. A) 9 cm, 18 cm. B) 6 cm, 12 cm. C) 9 cm, 27 cm. D) 10 cm, 20 cm. Show Answer Correct Answer: A) 9 cm, 18 cm. 23. The measure of each interior angle of a rectangular polygon of 12 sides is? A) 125 degree. B) 123 degree. C) 175 degree. D) 150 degree. Show Answer Correct Answer: D) 150 degree. 24. The polygon with 8 sides is called a A) Nonagon. B) Quadrilateral. C) Octagon. D) Hexagon. Show Answer Correct Answer: C) Octagon. 25. If two adjacent angles of a parallelogram are (5x-5) and (10x + 35), then the ratio of these angles is A) 1:4. B) 1:3. C) 1:2. D) 2:3. Show Answer Correct Answer: B) 1:3. 26. Which of the following quadrilateral is having opposite sides equal A) Rectangle. B) Kite. C) Trapezium. D) None of these. Show Answer Correct Answer: A) Rectangle. 27. Which one of the following is a regular quadrilateral? A) Kite. B) Trapezium. C) Square. D) Rectangle. Show Answer Correct Answer: C) Square. 28. How many diagonals does a regular hexagon have? A) 9. B) 12. C) 6. D) 8. Show Answer Correct Answer: A) 9. 29. The angles of a quadrilateral are 1:2:3:4. What type of quadrilateral is formed? A) Parallelogram. B) Trapezium. C) Rhombus. D) Square. Show Answer Correct Answer: B) Trapezium. 30. Which of the following quadrilaterals has Two pair of adjacent sides equal and its diagonals intersect at 90$^\circ$? A) Square. B) Kite. C) Rhombus. D) None of the above. Show Answer Correct Answer: B) Kite. 31. Which of the following quadrilateral has two pairs of adjacent sides equal and diagonals intersecting at right angles? A) Square. B) Rhombus. C) Kite. D) None of the above. Show Answer Correct Answer: C) Kite. 32. Which of the following quadrilaterals has two pairs of adjacent sides equal and its diagonals intersect at 90 degrees? A) Rhombus. B) Square. C) Kite. D) Rectangle. Show Answer Correct Answer: C) Kite. 33. The measures of the angles of a quadrilateral ABCD are are in the ratio 1:2:3:4, which one of the statement is true? A) AC = BC. B) AB II CD. C) AD II BC. D) None of the above. Show Answer Correct Answer: D) None of the above. 34. Which quadrilateral has four sides of equal length A) Rhombus. B) Rectangle. C) Kite. D) Parallelogram. Show Answer Correct Answer: A) Rhombus. 35. In a rectangle KITE, diagonal KT = 13 cm and IT = 5 cm. Find KI. A) 6 cm. B) 5 cm. C) 13 cm. D) 12 cm. Show Answer Correct Answer: D) 12 cm. 36. The quadrilateral whose diagonals are perpendicular to each other is: A) Parallelogram. B) Rectangle. C) Trapezium. D) Rhombus. Show Answer Correct Answer: D) Rhombus. 37. What is the sum of exterior angles of a pentagon? A) 180. B) 360. C) 540. D) 760. Show Answer Correct Answer: B) 360. 38. The ratio of two sides of the parallelogram is 4:3. if its perimeter is 56 cm, then the length of its sides are? A) 20, 8. B) 30, 26. C) 18, 10. D) 16, 12. Show Answer Correct Answer: D) 16, 12. 39. The sum of the measures of all the three angles of the triangle is A) 90$^\circ$. B) 180$^\circ$. C) 270$^\circ$. D) None of the above. Show Answer Correct Answer: B) 180$^\circ$. 40. What is the minimum interior angle possible for a regular polygon? A) 100. B) 120. C) 60. D) 80. Show Answer Correct Answer: C) 60. 41. Two adjacent angles of a Parallelogram are in the ratio of 2:3. Find all the 4 angles of the Parallelogram. A) 72, 108. B) 80, 100. C) 40, 140. D) 60, 120. Show Answer Correct Answer: A) 72, 108. 42. The sum of the measures of all the four angles of a quadrilateral is A) 90$^\circ$. B) 720$^\circ$. C) 360$^\circ$. D) 180$^\circ$. Show Answer Correct Answer: C) 360$^\circ$. 43. The diagonals of a rhombus are 6 cm and 8 cm. What will be the length of a side of the rhombus? A) 25 cm. B) 10cm. C) 14 cm. D) 5 cm. Show Answer Correct Answer: D) 5 cm. 44. ABCD is a rectangle and AC & BD are its diagonals. If AC = 10cm and BD is A) 10 cm. B) 5 cm. C) 15 cm. D) None of the above. Show Answer Correct Answer: A) 10 cm. 45. The polygon with 9 sides is called a A) Hexagon. B) Nonagon. C) Quadrilateral. D) Octagon. Show Answer Correct Answer: B) Nonagon. 46. Number of diagonals in a regular pentagon are A) 12. B) 9. C) 6. D) 5. Show Answer Correct Answer: D) 5. 47. Which of the following is a false statement for a parallelogram? A) Opposite sides are equal. B) Diagonals bisect each other. C) Opposite angles are equal. D) Diagonals bisect each other at right angles. Show Answer Correct Answer: D) Diagonals bisect each other at right angles. 48. The angle sum of a convex polygon with number of sides 8 is A) 1080$^\circ$. B) 720$^\circ$. C) 900$^\circ$. D) 1440$^\circ$. Show Answer Correct Answer: A) 1080$^\circ$. 49. Out of the three equal angles of a quadrilateral, each measures 70$^\circ$. The measure of the fourth angle is A) 70$^\circ$. B) 90$^\circ$. C) 140$^\circ$. D) 150$^\circ$. Show Answer Correct Answer: D) 150$^\circ$. 50. Which of the following satisfy the following properties?All sides are congruentAll angles are right angles.Opposite sides are parallel. A) Rectangle. B) Rhombus. C) Kite. D) Square. Show Answer Correct Answer: D) Square. 51. One angle of a concave quadrilateral is A) Obtuse. B) Straight. C) Reflex. D) Acute. Show Answer Correct Answer: C) Reflex. 52. A polygon in which all the angles are less than 180$^\circ$ is called ..... A) Convex Polygon. B) Concave Polygon. C) All the above. D) None of the above. Show Answer Correct Answer: A) Convex Polygon. 53. In which quadrilateral diagonals bisect each other at right angles A) Parallelogram. B) Rectangle. C) Square. D) Kite. Show Answer Correct Answer: C) Square. 54. A quadrilateral can have A) 4 acute angles. B) 4 obtuse angles. C) 3 Obtuse angles. D) 2 right angles and 2 obtuse angles. Show Answer Correct Answer: D) 2 right angles and 2 obtuse angles. 55. The measure of all angles together in a pentagon is A) 540 degrees. B) 360 degrees. C) 180 degrees. D) None of these. Show Answer Correct Answer: A) 540 degrees. 56. A figure is an equiangular parallelogram if and only if it is a A) Rectangle. B) Rhombus. C) Square. D) All. Show Answer Correct Answer: D) All. 57. The angles of a quadrilateral are in the ratio 1:2:3:4. The smallest angle is A) 18$^\circ$. B) 144$^\circ$. C) 36$^\circ$. D) 72$^\circ$. Show Answer Correct Answer: C) 36$^\circ$. 58. How many pairs of adjacent sides does a hexagon have? A) 8. B) 5. C) 6. D) 4. Show Answer Correct Answer: C) 6. 59. Which of the following statements is false for a square? A) It is a rectangle. B) It has all sides of equal length. C) All squares are not parallelograms. D) Eid darkness bisect each other at right angles. Show Answer Correct Answer: C) All squares are not parallelograms. 60. If angle A and angle B are two adjacent angles of the parallelogram. If angle A = 70$^\circ$ then angle B =? A) 70$^\circ$. B) 110$^\circ$. C) 130$^\circ$. D) None of the above. Show Answer Correct Answer: B) 110$^\circ$. Next →Related QuizzesMathematics QuizzesClass 8 QuizzesClass 8 Maths Chapter 3 Understanding Quadrilaterals Quiz 2 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books