Question Paper
Class / Subject: Class 9 (ICSE) · Mathematics
Chapter: Chapter 9 — Chapter 9: Triangles (Congruency in Triangles)
Time Allowed: 32 minutes
Max Marks: 16
1. What does SSS check? [1]
(A) All three sides are equal
(B) All angles are equal
(C) Only one side
(D) Nothing specific
2. What does SAS check? [1]
(A) Two sides and the included angle
(B) All three angles
(C) Only one side
(D) Nothing specific
3. What does ASA check? [1]
(A) Two angles and the included side
(B) All three sides
(C) Only one angle
(D) Nothing specific
4. What does RHS apply to? [1]
(A) Right triangles specifically
(B) All triangles equally
(C) Only isosceles triangles
(D) Only equilateral triangles
5. What does RHS check? [1]
(A) Right angle, hypotenuse and one side
(B) All three sides only
(C) All three angles only
(D) Nothing specific
6. What do congruent triangles have? [1]
(A) Equal corresponding sides and angles
(B) Different sides and angles
(C) No relationship
(D) Only equal areas
7. Why are congruency rules important? [1]
(A) They prove geometric relationships
(B) They have no importance
(C) Only for decoration
(D) They confuse geometry
8. What is an included angle in SAS? [1]
(A) The angle between the two known sides
(B) Any random angle
(C) An angle outside the triangle
(D) No specific angle
9. What does SSS check? [1]
(A) All three sides are equal
(B) All angles are equal
(C) Only one side
(D) Nothing specific
10. What does SAS check? [1]
(A) Two sides and the included angle
(B) All three angles
(C) Only one side
(D) Nothing specific
11. What does ASA check? [1]
(A) Two angles and the included side
(B) All three sides
(C) Only one angle
(D) Nothing specific
12. What does RHS apply to? [1]
(A) Right triangles specifically
(B) All triangles equally
(C) Only isosceles triangles
(D) Only equilateral triangles
13. What does RHS check? [1]
(A) Right angle, hypotenuse and one side
(B) All three sides only
(C) All three angles only
(D) Nothing specific
14. What do congruent triangles have? [1]
(A) Equal corresponding sides and angles
(B) Different sides and angles
(C) No relationship
(D) Only equal areas
15. Why are congruency rules important? [1]
(A) They prove geometric relationships
(B) They have no importance
(C) Only for decoration
(D) They confuse geometry
16. What is an included angle in SAS? [1]
(A) The angle between the two known sides
(B) Any random angle
(C) An angle outside the triangle
(D) No specific angle