This quiz works best with JavaScript enabled. Home > Cbse > Class 9 > Mathematics > Circles > Class 9 Maths Chapter 10 Circles – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 9 Maths Chapter 10 Circles Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Who is someone you trust more? A) A child. B) Your teacher. C) All the above. D) None of the above. Show Answer Correct Answer: B) Your teacher. 2. The short way around a circle that is less than 180$^{ o}$. A) Minor Arc. B) Major Arc. C) Central Angle. D) Semi-Circle. Show Answer Correct Answer: A) Minor Arc. 3. The area of a triangle is 150 sq. cm. and its sides are in the ratio 3:4:5. What is its perimeter? A) 35 cm. B) 40 cm. C) 60 cm. D) 10 cm. Show Answer Correct Answer: C) 60 cm. 4. The region between an arc and chord of a circle is ..... A) Arc. B) Segment. C) Secant. D) Sector. Show Answer Correct Answer: B) Segment. 5. If a triangle is inscribed in a circle, what is the measure of the angle opposite the diameter? A) 120 degrees. B) 60 degrees. C) 90 degrees. D) 45 degrees. Show Answer Correct Answer: C) 90 degrees. 6. Which of the following sentences uses the word 'circle' correctly? A) They circled the square with a rectangle. B) He circled the answer with a square. C) She drew a perfect circle on the paper. D) The circle was a triangle. Show Answer Correct Answer: C) She drew a perfect circle on the paper. 7. A bicycle tire has a diameter of 27 inches. About how far does the bike travel along the ground when the wheel rotates once? A) 27. B) 13. C) 81. D) 15.5. Show Answer Correct Answer: C) 81. 8. The area of triangle with given two sides 18 cm and 10 cm respectively and perimeter equal to 42 cm is: A) $21\sqrt{11}cm^2$. B) $20\sqrt{11}cm^2$. C) $22\sqrt{11}cm^2$. D) $19\sqrt{11}cm^2$. Show Answer Correct Answer: A) $21\sqrt{11}cm^2$. 9. What type of conic section is $4x^2-24x-9y^2-90y-153=0$ A) Parabola. B) Cirlce. C) Hyperbola. D) Ellipse. Show Answer Correct Answer: C) Hyperbola. 10. LaKeyia and Nicholas want to know if A circle has only one radius. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 11. Identify the correct use of 'circle' in a literary context. A) She circled the date on the calendar. B) The circle was drawn with a ruler. C) The circle of life is a common theme in literature. D) He circled the block three times. Show Answer Correct Answer: C) The circle of life is a common theme in literature. 12. What does the idiom 'circle the wagons' mean? A) To go on a journey. B) To draw a circle. C) To prepare for an attack. D) To organize a meeting. Show Answer Correct Answer: C) To prepare for an attack. 13. What type of conic section is $x^2-x+3y+6=0$ A) Parabola. B) Hyperbola. C) Ellipse. D) Circle. Show Answer Correct Answer: A) Parabola. 14. Write the standard form of the circle:x$^{2}$ + y$^{2}$ +10y = 39 A) X$^{2}$ + (y+5)$^{2}$ = 49. B) X$^{2}$ + (y+5)$^{2}$ = 64. C) (x+5)$^{2}$ + y$^{2}$ = 100. D) (x+5)$^{2}$ + y$^{2}$ = 61. Show Answer Correct Answer: B) X$^{2}$ + (y+5)$^{2}$ = 64. 15. The sides of a triangle are in the ratio 12:17:25 and its perimeter is 540 cm. The area is: A) 9000 cm$^{2}$. B) 8000 cm$^{2}$. C) 1000 cm$^{2}$. D) 5000 cm$^{2}$. Show Answer Correct Answer: A) 9000 cm$^{2}$. 16. What is the formula to find the area of circle? A) $\pi d^2$. B) $\pi r^2$. C) $2\pi r$. D) $2\pi d$. Show Answer Correct Answer: B) $\pi r^2$. 17. Choose the formula you would need for the following problem:carpeting a circular room A) CIRCUMFERENCE. B) AREA. C) All the above. D) None of the above. Show Answer Correct Answer: B) AREA. 18. Arthur ran around a circular field. What do you need to find in order to know how far Arthur ran around the circular field? A) Radius. B) Area. C) Circumference. D) Diameter. Show Answer Correct Answer: C) Circumference. 19. What type of conic section is $2x^2+2y^2-4x-16y-9=0$ A) Hyperbola. B) Ellipse. C) Circle. D) Parabola. Show Answer Correct Answer: C) Circle. 20. A tangent line of a circle is ..... A) It's circumference. B) A line that touches the circle only once. C) It's radius. D) It's diameter. Show Answer Correct Answer: B) A line that touches the circle only once. 21. In the circle represented by the equation (x-4)$^{2}$+(y-3)$^{2}$=25, the diameter is A) 10. B) 3. C) 5. D) 25. Show Answer Correct Answer: A) 10. 22. What type of conic section is $x^2+6x-4y+1=0$ A) Cirlce. B) Ellipse. C) Parabola. D) Hyperbola. Show Answer Correct Answer: C) Parabola. 23. What is the vertex of the parabola $\left(y+5\right)^2=-12\left(x+4\right)$ A) $\left(4, 5\right)$. B) $\left(-4, \-5\right)$. C) $\left(5, 4\right)$. D) $\left(-5, -4\right)$. Show Answer Correct Answer: B) $\left(-4, \-5\right)$. 24. To go from radius to diameter I need to do what? A) Multiply by 3.14. B) Divide by 2. C) Multiply by 2. D) Divide by 3.14. Show Answer Correct Answer: C) Multiply by 2. 25. Who is the most important person in your world of circles? A) Me. B) My teacher. C) All the above. D) None of the above. Show Answer Correct Answer: A) Me. 26. Choose the formula you would need for the following problem:The cheese and sauce on a pizza. A) CIRCUMFERENCE. B) AREA. C) All the above. D) None of the above. Show Answer Correct Answer: B) AREA. 27. If AB = 12 cm, BC = 16 cm and AB is perpendicular to BC, then the radius of the circle passing through the points A, B and C is A) 2.5 cm. B) 50cm. C) 3.5 cm. D) 10 cm. Show Answer Correct Answer: D) 10 cm. 28. In a circle, if the radius is 5 cm, what is the length of a chord that is 3 cm away from the center? A) 4 cm. B) 8 cm. C) 10 cm. D) 6 cm. Show Answer Correct Answer: D) 6 cm. 29. Choose the sentence that best describes a 'circle' in a metaphorical sense. A) The circle was a perfect shape. B) Her thoughts were going in circles, never reaching a conclusion. C) The circle was drawn with a compass. D) He circled the correct answer. Show Answer Correct Answer: B) Her thoughts were going in circles, never reaching a conclusion. 30. Longest chord in the circle is ..... A) Radius. B) Tangent. C) Diameter. D) Secant. Show Answer Correct Answer: C) Diameter. 31. What is the relationship between the angles subtended by two equal chords at the center of a circle? A) They are complementary. B) They are equal. C) They are unequal. D) They are supplementary. Show Answer Correct Answer: B) They are equal. 32. What is the meaning of the phrase 'running in circles'? A) Moving in a straight line. B) Going nowhere. C) Traveling around the world. D) Achieving a goal. Show Answer Correct Answer: B) Going nowhere. 33. A circle's circumference is approximately 22 ft. The circle's ..... is approximately 3.5 ft. A) Diameter. B) Area. C) Circumference. D) Radius. Show Answer Correct Answer: D) Radius. 34. Circles with exactly the same radius length are called A) Semicircle. B) Concentric Circles. C) Similar Circles. D) Congruent Circles. Show Answer Correct Answer: D) Congruent Circles. 35. What is the region of a circle that is the part bounded by an arc and the segment joining the endpoints. A) Segment. B) Arc. C) Sector. D) Angle. Show Answer Correct Answer: A) Segment. 36. Isaiah and Micah want to know if the circumference of a circle is 62.8 inches. What is the radius? A) 10 inches. B) 20 inches. C) 6.28 inches. D) 31.4 inches. Show Answer Correct Answer: A) 10 inches. 37. The Diameter divides the circle into two unequal parts. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 38. What is the diameter of a circle with a radius of 5.5 cm? A) 5.5 cm. B) 2.25 cm. C) 11 cm. D) 10 cm. Show Answer Correct Answer: C) 11 cm. 39. If the perimeter of an equilateral triangle is 60 cm, then what is its area? A) $100\sqrt{2}cm^2$. B) $100\sqrt{3}cm^2$. C) $200\sqrt{3}cm^2$. D) $200\sqrt{2}cm^2$. Show Answer Correct Answer: B) $100\sqrt{3}cm^2$. 40. If the diameter of a circle is 12 meters. What is the circumference?(use 3.14 for $\pi$ A) 37.68 meters. B) 18.84 meters. C) 9.42 meters. D) 75.36 meters. Show Answer Correct Answer: A) 37.68 meters. 41. A circle is a plane figure. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 42. Circle C has a radius of 4 centimeters. Circle D has a diameter of 12 centimeters. Which circle has the larger circumference? A) Circle C. B) Circle D. C) All the above. D) None of the above. Show Answer Correct Answer: B) Circle D. 43. The part of the circle between any two points on it is called an ..... A) Circumference. B) Arc. C) Minor Sector. D) None. Show Answer Correct Answer: B) Arc. 44. In a circle, if the length of a chord is equal to it's radius, what is the measure of the angle subtended by the chord at the centre? A) 120 degrees. B) 90 degrees. C) 45 degrees. D) 60 degrees. Show Answer Correct Answer: D) 60 degrees. 45. The circles with same radii are called ..... A) Concentric circles. B) Congruent circles. C) Tangent circles. D) None. Show Answer Correct Answer: B) Congruent circles. 46. A circle's circumference is approximately 37.68 inches. (use 3.14 for $\pi$ A) 113. B) 38. C) 19. D) 452. Show Answer Correct Answer: A) 113. 47. (y-4)$^{2}$ =-8(x+1)What direction does this parabola open? A) Left. B) Down. C) Right. D) Up. Show Answer Correct Answer: A) Left. 48. In a circle, if the radius is 10 cm, what is the length of a chord that is 8 cm away from the center? A) 14 cm. B) 10 cm. C) 16 cm. D) 12 cm. Show Answer Correct Answer: D) 12 cm. 49. Find the radius of a circle with a circumference of 59.66 feet. A) 19 feet. B) 25.5 feet. C) 13.5 feet. D) 9.5 feet. Show Answer Correct Answer: D) 9.5 feet. 50. If two chords in a circle intersect each other, what is the relationship between the products of the segments of the chords? A) They are both negative. B) They are both zero. C) They are unequal. D) They are equal. Show Answer Correct Answer: D) They are equal. 51. In the equation (x+2)$^{2}$+(y-3)$^{2}$=4, the diameter of the circle is ..... A) 4. B) 2. C) 3. D) 16. Show Answer Correct Answer: A) 4. 52. What is the length of the chord of a circle of radius 10cm if the perpendicular distance between the centre and the chord is 6cm? A) 16 cm. B) 20 cm. C) 14 cm. D) 12 cm. Show Answer Correct Answer: A) 16 cm. 53. Stephanie and Dezmon want to know If you are given the diameter, how can you calculate the radius? A) Divide the diameter by 2. B) Add 2 to the diameter. C) Multiply the diameter by 2. D) Subtract 2 from the diameter. Show Answer Correct Answer: A) Divide the diameter by 2. 54. A circle has a diameter of approximately 25 inches. The area of the circle is approximately(use 3.14 for $\pi$ A) $491\in^2$. B) $1963\in^2$. C) $79\in^2$. D) $2000\in$. Show Answer Correct Answer: A) $491\in^2$. 55. When you are running in circles you are going ..... A) Nowhere. B) Everywhere. C) Inside and outside of the circle. D) Places. Show Answer Correct Answer: A) Nowhere. 56. Charles and Brodie have a circular garden that has a radius of 1.5 feet. They want to enclose the garden edging that costs $ 0.75 per foot. About how much will the edging cost? A) $ 7.00. B) $ 8.00. C) $ 0.50. D) $ 3.50. Show Answer Correct Answer: A) $ 7.00. 57. The diameter is two times the radius A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 58. Concentric circles have ..... A) Different centre, same radii. B) Different centre, different radii. C) Same centre, same radii. D) Same centre, different radii. Show Answer Correct Answer: D) Same centre, different radii. 59. The sides of a triangle are 3 cm, 5 cm and 6 cm. What is its area? A) $2\sqrt{5}cm^2$. B) $5\sqrt{12}cm^2$. C) $2\sqrt{3}cm^2$. D) $4\sqrt{14}cm^2$. Show Answer Correct Answer: D) $4\sqrt{14}cm^2$. 60. Length of one of the equal sides of an isosceles triangle is 4 cm. If its perimeter is 14 cm, then what is its area? A) $21cm^2$. B) $7\sqrt{7}cm^2$. C) $7\sqrt{3}cm^2$. D) $3\sqrt{7}cm^2$. Show Answer Correct Answer: D) $3\sqrt{7}cm^2$. Next →Related QuizzesMathematics QuizzesClass 9 QuizzesClass 9 Maths Chapter 10 Circles Quiz 2 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books