This quiz works best with JavaScript enabled. Home > Cbse > Class 8 > Mathematics > Squares And Square Roots > Class 8 Maths Chapter 6 Squares And Square Roots – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Maths Chapter 6 Squares And Square Roots Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The square root of 1440000 is A) 12. B) 120. C) 1200. D) 120000. Show Answer Correct Answer: C) 1200. 2. $\sqrt{2}\times\sqrt{2}$ A) $\sqrt{35}$. B) $\sqrt{14}$. C) $2$. D) None of the above. Show Answer Correct Answer: C) $2$. 3. Find the least number which must be added to the following number to make it a perfect square:5607 A) 18. B) 74. C) 45. D) 75. Show Answer Correct Answer: A) 18. 4. Find the smallest whole number by which it should be multiplied to 2028 to get a perfect square number. A) 3. B) 2. C) 7. D) 5. Show Answer Correct Answer: A) 3. 5. What is the inverse operation of square? A) Addition. B) Subtraction. C) Multiplication. D) Square root. Show Answer Correct Answer: D) Square root. 6. Does the number 2 have a square root? A) No, because 2 is not a perfect square. B) Yes, it is about 1.414. C) No, because 2 is an even number. D) Yes, it is 4. Show Answer Correct Answer: B) Yes, it is about 1.414. 7. The square of-39 is A) Negative. B) Positive. C) 39. D) Zero. Show Answer Correct Answer: B) Positive. 8. What is 266$^{2}$ A) 6453. B) 54760. C) 8793. D) 70756. Show Answer Correct Answer: D) 70756. 9. Find the value without calculator. $\sqrt{3}\times\sqrt{48}$ A) 12. B) 4. C) 6. D) 72. Show Answer Correct Answer: A) 12. 10. The square root of:$\frac{625}{169}$ A) $\frac{25}{16}$. B) $\frac{15}{13}$. C) $\frac{25}{13}$. D) None of the above. Show Answer Correct Answer: C) $\frac{25}{13}$. 11. Which is the greatest three-digit perfect square? A) 999. B) 961. C) 962. D) 970. Show Answer Correct Answer: B) 961. 12. Square of odd number are ..... A) Always odd. B) Never odd. C) Always even. D) Sometimes odd. Show Answer Correct Answer: A) Always odd. 13. The students of a class arranged a picnic. Each student contributed as many rupees as the number of students in the class. If the total contribution is Rs 1156, find the strength of the class. A) 54. B) 64. C) 24. D) 34. Show Answer Correct Answer: D) 34. 14. The number of zeros in $\sqrt{160000}$ A) 1. B) 2. C) 3. D) None of the above. Show Answer Correct Answer: B) 2. 15. Which of the followng is a perfect square? A) 324. B) 9468. C) 64000. D) 8457. Show Answer Correct Answer: A) 324. 16. Between 50 and 60, the perfect square number is A) 56. B) 55. C) 54. D) None. Show Answer Correct Answer: D) None. 17. What is the perimeter of a square that has an area of 81? A) 36. B) 18. C) 81. D) 9. Show Answer Correct Answer: A) 36. 18. What is a perfect square? A) An integer whose reciprocal is an integer. B) An integer whose square root is an integer. C) An integer whose square root is a rational number. D) A rational number whose reciprocal is integer. Show Answer Correct Answer: B) An integer whose square root is an integer. 19. A perfect square is a number whose square root is ..... A) Even. B) Irrational. C) Rational. D) Odd. Show Answer Correct Answer: C) Rational. 20. How many digits are there in the square root of 1234321? A) 5. B) 4. C) 3. D) 6. Show Answer Correct Answer: B) 4. 21. What is the square root of 25? A) 3. B) 6. C) 5. D) 12. Show Answer Correct Answer: C) 5. 22. The prime factors of 405 are: A) 9 X 9 X 5. B) 3 X 9 X 5. C) 3 X 3 X 3 X 5. D) None of the above. Show Answer Correct Answer: C) 3 X 3 X 3 X 5. 23. The smallest number by which 9408 must be divided to get a perfect square is ..... A) 5. B) 4. C) 2. D) 3. Show Answer Correct Answer: D) 3. 24. True or False? $4^2=-4^2$ A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 25. The area of a square is 100 cm$^{2}$. What is the perimeter? A) 40 cm. B) 25 cm. C) 10 cm. D) 50 cm. Show Answer Correct Answer: A) 40 cm. 26. A man has a garden in which trees are arranged in rows and column such that there are same rows and same number of columns. If total number of trees is 5625, find the number of rows. A) 75. B) 65. C) 45. D) 85. Show Answer Correct Answer: A) 75. 27. Find the product of 17 and 19 A) 323. B) 324. C) 326. D) None of the above. Show Answer Correct Answer: A) 323. 28. What is the square of 16? A) 256. B) 36. C) 224. D) 144. Show Answer Correct Answer: A) 256. 29. Write a Pythagorean triplet whose one number is 12. A) (12, 24, 27). B) (12, 36, 38). C) (12, 16, 19). D) (12, 35, 37). Show Answer Correct Answer: D) (12, 35, 37). 30. Find the pythogorean triplet of (3, ..... , ..... ) A) 3, 8, 9. B) 3, 4, 5. C) 3, 5, 7. D) 3, 9, 10. Show Answer Correct Answer: B) 3, 4, 5. 31. The unit digit in the square of the number 132 is A) 3. B) 1. C) 4. D) 2. Show Answer Correct Answer: C) 4. 32. Is a perfect square A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 33. Find the least number which must be subtracted from 3250 so as to get a perfect square. A) 3. B) 4. C) 1. D) 2. Show Answer Correct Answer: C) 1. 34. The difference between the squares of two consecutive number is equal to their ..... A) Difference. B) Sum. C) Quotient. D) Product. Show Answer Correct Answer: B) Sum. 35. Square of 13 is ..... A) 159. B) 189. C) 179. D) 169. Show Answer Correct Answer: D) 169. 36. What is the square of 6? A) 37. B) 36. C) 34. D) 35. Show Answer Correct Answer: B) 36. 37. (a) a number finds the factor of a given number that multiplies by itself. A) A. Square Rooting. B) Squaring. C) All the above. D) None of the above. Show Answer Correct Answer: A) A. Square Rooting. 38. Rahul's age is two more than the square root of the age of Mohan's father. Mohan's father is 64 years old.Find Rahuls age. A) 8. B) 24. C) 14. D) 10. Show Answer Correct Answer: D) 10. 39. Which of the following are not perfect squares? A) 120. B) 100. C) 36. D) 256. Show Answer Correct Answer: A) 120. 40. Find the pythagorean triplet, if the smallest element is 12. A) (12, 36, 37). B) (6, 35, 38). C) (12, 35, 37). D) (6, 12, 36). Show Answer Correct Answer: C) (12, 35, 37). 41. The numbers ending with 2, 3, 7, 8 are ..... A) Perfect squares. B) Not perfect squares. C) Primes. D) Composites. Show Answer Correct Answer: B) Not perfect squares. 42. Find the square root of 15.25 up to two decimal places. A) 3.90. B) 3.92. C) 3.91. D) 3.89. Show Answer Correct Answer: C) 3.91. 43. What is the length of the side of a square whose area is 441 cm$^{2}$? A) 21. B) 12. C) 20. D) 22. Show Answer Correct Answer: A) 21. 44. A perfect square number between 30 and 40 is A) 49. B) 32. C) 33. D) 36. E) 39. Show Answer Correct Answer: D) 36. 45. Square of a number 0 at the units place ends in A) No zeros. B) Two zero. C) One zero. D) Can be any number. Show Answer Correct Answer: B) Two zero. 46. The square of which of the following would be even number? A) ( c ) 1057. B) ( b ) 7779. C) ( d ) 131. D) (a ) 2826. Show Answer Correct Answer: D) (a ) 2826. 47. Divide. $\sqrt{\frac{144}{9}}$ A) $16$. B) $4$. C) $12$. D) $3$. Show Answer Correct Answer: B) $4$. 48. If a square has a side length of 5 cm, what would the area be? A) 55 cm$^{2}$. B) 50 cm$^{2}$. C) 20 cm$^{2}$. D) 25 cm$^{2}$. Show Answer Correct Answer: D) 25 cm$^{2}$. 49. Find the square root of 6561 using the division method A) 78. B) 81. C) 90. D) 29. Show Answer Correct Answer: B) 81. 50. The square root of 20657025 is A) 5544. B) 5454. C) 4455. D) 4545. Show Answer Correct Answer: D) 4545. 51. $\sqrt{5}\times\sqrt{7}$ A) $\sqrt{35}$. B) $\sqrt{14}$. C) $2$. D) None of the above. Show Answer Correct Answer: A) $\sqrt{35}$. 52. Given the list of perfect squares:25, 36, ..... , 64, 81.The square of what number will fill in the blank? A) 7. B) 49. C) 6. D) 25. Show Answer Correct Answer: A) 7. 53. What is a square number? A) A number that can be expressed as the product of two different natural numbers. B) A number that can be expressed as the product of two equal natural numbers. C) A number that cannot be expressed as the product of two natural numbers. D) A number that can be expressed as the sum of two natural numbers. Show Answer Correct Answer: B) A number that can be expressed as the product of two equal natural numbers. 54. The square root of an odd number is ..... A) Odd. B) Even. C) Prime. D) Composite. Show Answer Correct Answer: A) Odd. 55. A decimal that DOES NOT END and has NO PATTERN is ..... A) Rational. B) Irrational. C) All the above. D) None of the above. Show Answer Correct Answer: B) Irrational. 56. Which of the following has a value that is less than zero? A) $\left(\frac{1}{3}\right)^2$. B) $0.5^2$. C) $-7^2$. D) $\left(-6\right)^2$. Show Answer Correct Answer: C) $-7^2$. 57. The least number must be added to 5607 to make the sum a perfect square is ..... A) 18. B) 17. C) 20. D) 19. Show Answer Correct Answer: A) 18. 58. Find the number of digits in the square root of 15625 A) 4. B) 2. C) 3. D) 1. Show Answer Correct Answer: C) 3. 59. Square of number 2 at the units place ends in A) 1. B) 4. C) 2. D) 0. Show Answer Correct Answer: B) 4. 60. Square of a number 4 at the units place ends in A) 4. B) 6. C) 2. D) 8. Show Answer Correct Answer: B) 6. Next →Related QuizzesMathematics QuizzesClass 8 QuizzesClass 8 Maths Chapter 6 Squares And Square Roots Quiz 2Class 8 Maths Chapter 6 Squares And Square Roots Quiz 3Class 8 Maths Chapter 6 Squares And Square Roots Quiz 4Class 8 Maths Chapter 6 Squares And Square Roots Quiz 5 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books