This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Maths Chapter 6 Triangles – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Maths Chapter 6 Triangles Quiz 3 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What triangle has one right angle and 2 acute angles? A) Acute triangle. B) Right triangle. C) Obtuse triangle. D) None of the above. Show Answer Correct Answer: B) Right triangle. 2. Which of the following is not a valid reason to prove congruent triangles? A) ASA. B) SAS. C) SSS. D) AAA. Show Answer Correct Answer: D) AAA. 3. If a line divides any two sides of a triangle in the same ratio then the line is ..... to the third side A) Parallel. B) Perpendicular. C) Co-incides. D) None of the above. Show Answer Correct Answer: A) Parallel. 4. What is the correct term if the triangle has one 90 degree angle? A) Scalene. B) Acute. C) Obtuse. D) Right. Show Answer Correct Answer: D) Right. 5. A triangle with no equal sides is called: A) Isosceles. B) Scalene. C) Equilateral. D) Obtuse. Show Answer Correct Answer: B) Scalene. 6. The difference between the lengths of any two sides is ..... than the length of the third side. A) Greater than. B) Less than. C) Altitude. D) None of the above. Show Answer Correct Answer: B) Less than. 7. True or False.A right triangle has 2 right angles. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 8. Congruent objects are ..... copies of one another. A) Opposite. B) Different. C) Exact. D) None of these. Show Answer Correct Answer: C) Exact. 9. A ladder 10 m long reaches a window 8 m above the ground. The distance of the foot of the ladder fromthe base of the wall is ..... m. A) 2 m. B) 6 m. C) 8 m. D) 4 m. Show Answer Correct Answer: B) 6 m. 10. If 2 of the angles of a triangle are 30 and 70 degrees, the third angle measures ..... A) 80. B) 100. C) 60. D) 90. Show Answer Correct Answer: A) 80. 11. A triangle can have: A) Two right angles. B) Two obtuse angles. C) One obtuse angle. D) Three obtuse angles. Show Answer Correct Answer: C) One obtuse angle. 12. If two figures are similar, the corresponding sides are ..... A) Equal. B) Congruent. C) Proportional. D) None of these. Show Answer Correct Answer: C) Proportional. 13. The Triangle Sum Theorem states that the sum of all angles in a triangle is ..... A) 45$^\circ$. B) 90$^\circ$. C) 180$^\circ$. D) 360$^\circ$. Show Answer Correct Answer: C) 180$^\circ$. 14. N the given figure, if angle A=90$^\circ$, angle B=90$^\circ$, OB = 45 cm, OA = 6 cm and AP = 4 cm then QB will be A) 2 cm. B) 3 cm. C) 4 cm. D) 6 cm. Show Answer Correct Answer: B) 3 cm. 15. The longest side of an obtuse triangle is always: A) Opposite the smallest angle. B) Opposite the right angle. C) Opposite the obtuse angle. D) Any side. Show Answer Correct Answer: C) Opposite the obtuse angle. 16. Is the triangle with sides 12 cm, 16 cm and 18 cm a right triangle? A) No. B) Yes. C) None. D) None of the above. Show Answer Correct Answer: A) No. 17. If two sides of an isosceles triangles are 3 cm and 8 cm, then the length of the third side is A) 3 cm. B) 8 cm. C) 3 cm or 8 cm. D) None. Show Answer Correct Answer: B) 8 cm. 18. XY is drawn parallel to the base BC of a $\Delta$ A) 2 cm. B) 4 cm. C) 6 cm. D) 8 cm. Show Answer Correct Answer: C) 6 cm. 19. What type of triangle has 3 congruent sides? A) Scalene. B) Equilateral. C) Exterior Angle Theorem. D) Isosceles. Show Answer Correct Answer: B) Equilateral. 20. A triangle's area is 100 ft$^{2}$ & its height is 10 feet long. What is the base of the triangle? A) 10 feet. B) 20 feet. C) 500 feet. D) 1000 feet. Show Answer Correct Answer: B) 20 feet. 21. In the given figure, DE ll BC . The value of EC is A) 1.5 cm. B) 3 cm. C) 2 cm. D) 1 cm. Show Answer Correct Answer: C) 2 cm. 22. Daniel has drawn a triangle with sidesof length 5cm, 5cm and 8cm.What type of trianglehashe drawn? A) Isosceles. B) Right-angled. C) Equilateral. D) Scalene. Show Answer Correct Answer: A) Isosceles. 23. Can the following 3 numbers be side measures of a triangle1, 13, 13 A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 24. Classify this triangle.b A) Acute equilateral. B) B. right scalene. C) Acute isosceles. D) Obtuse scalene. E) Right isosceles. Show Answer Correct Answer: B) B. right scalene. 25. Can the following 3 numbers be side measures of a triangle7, 5, 4 A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. ← PreviousNext →Related QuizzesClass 10 Maths Chapter 6 Triangles Quiz 1Class 10 Maths Chapter 6 Triangles Quiz 2Class 10 Maths Chapter 6 Triangles Quiz 4Class 10 Maths Chapter 6 Triangles Quiz 5Class 10 Maths Chapter 6 Triangles Quiz 6Class 10 Maths Chapter 6 Triangles Quiz 7Class 10 Maths Chapter 6 Triangles Quiz 8Class 10 Maths Chapter 6 Triangles Quiz 9Class 10 Maths Chapter 6 Triangles Quiz 10Class 10 Maths Chapter 6 Triangles Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books