This quiz works best with JavaScript enabled. Home > Cbse > Class 9 > Mathematics > Triangles > Class 9 Maths Chapter 7 Triangles – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 9 Maths Chapter 7 Triangles Quiz 1 (21 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The point of intersection of all the three altitudes of a triangle is called A) Median. B) Perpendicular. C) Bisector. D) Orthocentre. Show Answer Correct Answer: D) Orthocentre. 2. A triangle has angle measures of m A) 62.3. B) 85. C) 36.6. D) 18. Show Answer Correct Answer: D) 18. 3. Triangles can be congruent when sides, angles and perimeter are equal A) No. B) Yes. C) Maybe. D) None of the above. Show Answer Correct Answer: A) No. 4. A triangle is congruent when A) Only sides are equal. B) Only angles are equal. C) Both sides and angles are equal. D) None of above. Show Answer Correct Answer: C) Both sides and angles are equal. 5. If AB $=$ $=$ $=$ A) $\Delta$ $\cong$ $\Delta$. B) $\Delta$ $\cong$ $\Delta$. C) $\Delta$ $\cong$ $\Delta$. D) $\Delta$ $\cong$ $\Delta$. Show Answer Correct Answer: A) $\Delta$ $\cong$ $\Delta$. 6. In $\Delta$ $\angle$ $=$ $\angle$ $=$ $=$ A) 2 cm. B) 4 cm. C) 5 cm. D) 2.5 cm. Show Answer Correct Answer: B) 4 cm. 7. A triangle in which one of the angles measures 90 degrees is called A) Straight angled. B) Right-angled. C) Obtuse angled. D) Acute angled. Show Answer Correct Answer: B) Right-angled. 8. A triangle have ..... vertices and angles A) 2. B) 8. C) 3. D) 5. Show Answer Correct Answer: C) 3. 9. Is it possible to construct a triangle with lengths of its sides 6 cm, 5 cm, and 4 cm A) No. B) Yes. C) All the above. D) None of the above. Show Answer Correct Answer: B) Yes. 10. Two sides of a triangle are of length 4 cm and 2.5 cm. The length of the third side of the triangle cannot be A) 6.5 cm. B) 6.3 cm. C) 6 cm. D) 5.5 cm. Show Answer Correct Answer: A) 6.5 cm. 11. Which rule will be applied, if two sides and one angle are equal A) SAS. B) ASA. C) SSS. D) RHS. Show Answer Correct Answer: A) SAS. 12. Two figures are ..... , if they are of the same shape and of the same size. A) Look alike. B) Congruent. C) Equal. D) Similar. Show Answer Correct Answer: B) Congruent. 13. Name the congruency criteria if given that two triangles have two corresponding sides & an included angle equal. A) ASA. B) SAS. C) SSS. D) RHS. Show Answer Correct Answer: B) SAS. 14. Sum of two sides of a triangle is greater than third side. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 15. Two triangles are congruent if and only if A) Their measures are equal. B) They have exactly the same shape and size. C) Superimposed on the other covers it exactly. D) When their lengths are equal. Show Answer Correct Answer: C) Superimposed on the other covers it exactly. 16. All the medians of a triangle are equal in case of a: A) Isosceles Triangle. B) Equilateral triangle. C) Scalene Triangle. D) Right angled Triangle. Show Answer Correct Answer: B) Equilateral triangle. 17. Say 'TRUE' or 'FALSE'The angles of a triangle may be 90$^\circ$, 20$^\circ$, 90$^\circ$ A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 18. Which one is not an example of congruency A) 2 coins of same size on each other. B) 2 equal size of bangles. C) Photocopies of an image. D) A big cloth of 2 metres and a cloth of 5 metres. Show Answer Correct Answer: D) A big cloth of 2 metres and a cloth of 5 metres. 19. Sides opposite to equal ..... of a triangle are equal A) Vertices. B) Angles. C) Sides. D) Altitudes. Show Answer Correct Answer: B) Angles. 20. The point of intersection of all the three medians of a triangle is called A) Altitudes. B) Centroid. C) Orthocentre. D) Bisectors. Show Answer Correct Answer: B) Centroid. 21. Can we say Number of sides = number of angles = number of vertices of triangle are equal A) I don't know. B) Yes. C) Maybe. D) No. Show Answer Correct Answer: B) Yes. Related QuizzesMathematics QuizzesClass 9 Quizzes 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books