This quiz works best with JavaScript enabled. Home > Cbse > Class 10 > Mathematics > Triangles > Class 10 Maths Chapter 6 Triangles – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Maths Chapter 6 Triangles Quiz 6 (24 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the largest mammal in the world? A) Whale. B) Hippopotamus. C) Rhinoceros. D) Elephant. Show Answer Correct Answer: A) Whale. 2. An aeroplane leaves an airport and flies due north at a speed of 1000 km per hour. At the same time, another aeroplane leaves the same airport and flies due west at a speed of 1200 km per hour. How far apart will be the two planes after $1\\frac{1}{2}$ A) $30\sqrt{61}$. B) $61\sqrt{30}$. C) $61\sqrt{300}$. D) $300\sqrt{61}$. Show Answer Correct Answer: D) $300\sqrt{61}$. 3. Two angles in a triangle measure 30$^\circ$ and 105$^\circ$. What is the measure of the third angle in the triangle? A) 65$^\circ$. B) 105$^\circ$. C) 45$^\circ$. D) 75$^\circ$. Show Answer Correct Answer: C) 45$^\circ$. 4. The altitudes of a triangle meet at the: A) Circumcentre. B) Centroid. C) Orthocentre. D) Incentre. Show Answer Correct Answer: C) Orthocentre. 5. Can the following 3 numbers be side measures of a triangle5, 8, 4 A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 6. The Perimeters of two similar triangles are 56cm and 35 cm. The ratio of the areas of the these triangles is: A) $7:8$. B) $8:7$. C) $8:5$. D) $7:5$. Show Answer Correct Answer: C) $8:5$. 7. Triangle ABC is isosceles with AC = BC . If AB$^{2}$= 2AC$^{2}$, then the measure of angle C will be A) 60$^{o}$. B) 90$^{o}$. C) 30 $^{o}$. D) 45$^{o}$. Show Answer Correct Answer: B) 90$^{o}$. 8. Can the following 3 numbers be side measures of a triangle3, 6, 2 A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 9. A triangle can be classified as an isosceles triangle if there are two equal sides. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 10. A ladder is placed against a wall on the ground. The angle formed between ladder and ground is: A) Acute Angle. B) Obtuse Angle. C) Straight Angle. D) Right Angle. Show Answer Correct Answer: A) Acute Angle. 11. If the two angles of a triangle are 50 degree and 70 degree, then the measure of third angle is ..... A) 50$^{0}$. B) 60$^{0}$. C) 70$^{0}$. D) None of the above. Show Answer Correct Answer: B) 60$^{0}$. 12. The third term ofan A.P is 1 and the sixth term is-11.The 15th term of an A.P is: A) -59. B) -55. C) -47. D) -51. Show Answer Correct Answer: C) -47. 13. A ..... triangle has no equal sides. A) Scalene. B) Isosceles. C) Equilateral. D) None of the above. Show Answer Correct Answer: A) Scalene. 14. Lengths of sides of a triangle are 3 cm, 4 cm and 5 cm. The triangle is A) Acute-angled triangle. B) Obtuse angled triangle. C) An Isosceles right triangle. D) Right-angled triangle. Show Answer Correct Answer: D) Right-angled triangle. 15. Sally the squirrel is looking at a tree that is 100 feet away. If the angle of elevation between Sally and the top of the tree is 23, how tall is the tree? A) 42.4474 ft. B) 39.0731 ft. C) 235.5852 ft. D) 0.0042 ft. Show Answer Correct Answer: A) 42.4474 ft. 16. If perimeter of a triangle is 100 cm and the length of two sides are 30 cm and 40 cm, the length of third side will be: A) 40 cm. B) 50 cm. C) 30 cm. D) 60 cm. Show Answer Correct Answer: C) 30 cm. 17. In an ..... triangle, all three angles are less than 90 degrees. A) Obtuse. B) Acute. C) 360 degrees. D) Right. Show Answer Correct Answer: B) Acute. 18. In congruent triangles, corresponding parts are always ..... A) Equal. B) Acute. C) Equilateral. D) Opposite. Show Answer Correct Answer: A) Equal. 19. A ..... connects a vertex of a triangle to the mid-point of the opposite side. A) Altitude. B) Median. C) Opposite side. D) None of the above. Show Answer Correct Answer: B) Median. 20. If the Pythagoras property holds, the triangle must be ..... A) Right angled. B) Acute angled. C) Obtuse angled. D) None of the above. Show Answer Correct Answer: A) Right angled. 21. State the type of other two angles of a right angled triangle A) Obtuse angles. B) Right angles. C) Straight angles. D) Acute angles. Show Answer Correct Answer: D) Acute angles. 22. $13^2+\sqrt{121}$ A) 147. B) 180. C) 134. D) 176. Show Answer Correct Answer: B) 180. 23. Which of the following triangle is no possible to draw? A) 23cm, 15cm, 7cm. B) 12cm, 11cm, 8 cm. C) 4cm, 5cm, 3cm. D) 21cm, 15cm, 10cm. Show Answer Correct Answer: A) 23cm, 15cm, 7cm. 24. If all three angles of a triangle are equal, each angle is: A) 120$^\circ$. B) 60$^\circ$. C) 45$^\circ$. D) 30$^\circ$. Show Answer Correct Answer: B) 60$^\circ$. ← PreviousRelated QuizzesMathematics QuizzesClass 10 QuizzesClass 10 Maths Chapter 6 Triangles Quiz 1Class 10 Maths Chapter 6 Triangles Quiz 2Class 10 Maths Chapter 6 Triangles Quiz 3Class 10 Maths Chapter 6 Triangles Quiz 4Class 10 Maths Chapter 6 Triangles Quiz 5 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books