CBSE Class 9 Triangles MCQs – Congruence Criteria (SSS, SAS, ASA, RHS)
CBSE Class 9 Triangles MCQs – Congruence Criteria (SSS, SAS, ASA, RHS)
Class: 9 | Subject: Mathematics | Chapter: 7 – Triangles
Board: CBSE | Based on Latest NCERT Curriculum
Board: CBSE | Based on Latest NCERT Curriculum
These MCQs are strictly designed as per the CBSE Class 9 Mathematics syllabus and NCERT textbook guidelines. Ideal for school exams and board preparation.
1. Two triangles are congruent if their three corresponding sides are equal. This is:
Answer: C. SSS
Side-Side-Side congruence states that if all three sides of one triangle equal corresponding sides of another, triangles are congruent.
Side-Side-Side congruence states that if all three sides of one triangle equal corresponding sides of another, triangles are congruent.
2. If two sides and included angle are equal in two triangles, the congruence rule is:
Answer: B. SAS
Side-Angle-Side requires equality of two sides and the included angle.
Side-Angle-Side requires equality of two sides and the included angle.
3. If two angles and included side are equal, rule is:
Answer: A.
Angle-Side-Angle ensures congruence.
Angle-Side-Angle ensures congruence.
4. RHS congruence applies to:
Answer: C.
RHS is for right triangles only.
RHS is for right triangles only.
5. If hypotenuse and one side of right triangles are equal, they are:
Answer: B.
RHS congruence rule.
RHS congruence rule.
6. Congruent triangles have:
Answer: B.
Congruent means exactly same shape and size.
Congruent means exactly same shape and size.
7. If triangles are congruent, corresponding angles are:
Answer: B.
CPCT (Corresponding Parts of Congruent Triangles).
CPCT (Corresponding Parts of Congruent Triangles).
8. If triangles are congruent, corresponding sides are:
Answer: A.
CPCT principle applies.
CPCT principle applies.
9. SSA condition guarantees congruence?
Answer: B.
SSA is not a valid congruence criterion.
SSA is not a valid congruence criterion.
10. If two triangles have equal perimeters, they are:
Answer: C.
Equal perimeter does not guarantee congruence.
Equal perimeter does not guarantee congruence.
11. ASA rule requires equality of:
Answer: B.
Angle-Side-Angle rule.
Angle-Side-Angle rule.
12. In RHS rule, angle used is:
Answer: B.
RHS applies only to right triangles.
RHS applies only to right triangles.
13. If two sides and a non-included angle equal, rule is:
Answer: C.
SSA is not sufficient.
SSA is not sufficient.
14. Congruent triangles have equal:
Answer: D.
All properties match.
All properties match.
15. If SSS holds, triangles are:
Answer: B.
SSS is valid congruence rule.
SSS is valid congruence rule.
16. CPCT stands for:
Answer: A.
CPCT property follows congruence proof.
CPCT property follows congruence proof.
17. If two angles are equal and one side is equal but not included, rule is:
Answer: B.
AAS is similar to ASA and valid.
AAS is similar to ASA and valid.
18. RHS rule requires equality of:
Answer: B.
Right angle assumed, so hypotenuse & side sufficient.
Right angle assumed, so hypotenuse & side sufficient.
19. Congruence symbol is:
Answer: A.
≅ denotes congruence.
≅ denotes congruence.
20. Congruent triangles have equal:
Answer: C.
All corresponding sides and angles are equal.
All corresponding sides and angles are equal.
