Question Paper
Class / Subject: Class 9 (CBSE) · Mathematics
Chapter: Chapter 7 — Chapter 7: Triangles
Time Allowed: 15 minutes
Max Marks: 6
1. SSS congruence criterion compares: [1]
(A) three sides
(B) three angles
(C) two sides and an angle
(D) two angles and a side
2. Which criterion does NOT prove congruence? [1]
(A) AAA
(B) SSS
(C) SAS
(D) ASA
3. State which congruence criterion applies if two angles and the included side are equal: [1]
(A) ASA
(B) SSS
(C) SAS
(D) AAA
4. In a triangle, the sum of any two sides must be: [1]
(A) greater than the third side
(B) equal to the third side
(C) less than the third side
(D) exactly double the third side
5. Check if sides of length 3,4,5 can form a triangle: [1]
(A) Yes, they satisfy the triangle inequality
(B) No, they do not
(C) Cannot be determined
(D) Only if it's a right triangle
6. The angle opposite the longest side of a triangle is: [1]
(A) the largest angle
(B) the smallest angle
(C) always 90°
(D) always 60°