Class 9 Maths Chapter 7 Triangles | Multiple Choice Questions

CBSE CLASS 9 MATHEMATICS /MCQ
Multiple Choice Questions on TRIANGLES – Chapter 7

1. Two figures are ———, if they are of the same shape and of the same size.

A. Similar
B. Congruent
C. Equal

2. Angles opposite to equal sides of a triangle are ————–

A. Equal
B. Double
C. Different

3. Each angle of an equilateral triangle is of ———- degree.

A. 30
b. 60
c. 90

4. In a triangle, angle opposite to the longer side is —————-

A. Smaller
B. Larger
C. Equal

5. Sides opposite to equal angles of a triangle are ———–

A. Smaller
B. Larger
C. Equal

6. In two triangles ABC and PQR, if AB = QR, BC = RP and CA = PQ then————

A. ABC congruent to PQR
B. ABC congruent to QRP
C. ABC congruent to RPQ

7. In triangle PQR, PQ = PR and < P = 70 degree, then < Q = —————-

A. 40
B. 55
C. 60

8. In triangle ABC, AB = AC then ————–

A. <A = <B
B. <B = <C
C. <C = <A

9. In two triangles ABC and DEF, AC = DF, AB = DE, BC = EF so triangle ABC congruent to DEF by ————— rule.

A. SSS Congruence rule
B. SAS Congruence rule
C. RHS Congruence rule

10. In two right triangles ABC and PQR, BC = QR, AC = PR, <A = <P = 90 degree,so triangle ABC congruent to PQR by ———– rule.

A. SSS Congruence rule
B. SAS Congruence rule
C. RHS Congruence rule

11. In triangle PQR, <P = <R and PR = 7 cm, PQ = 6 cm then length of QR is ——

A. 6cm
B. 7 cm
C. 8 cm

12. PQR is a triangle right angled at P, then ————

A. QR > PQ
B. QR = PQ
C. QR < PQ

13. In triangle ABC, <A = 60 degree, <B = 70 degree. The longest side of the triangle is ————–

A. AB
B. AC
C. BC

14. Which of the following is not a congruence criterion of triangles?

A. SSS Congruence rule
B. AAA Congruence rule
C. SAS Congruence rule

15. Sum of any two sides of a triangle is ———– than the third side.

A. Greater
B. Smaller
C. Equal

ANSWERS:

1. Congruent
2. Equal
3. 60
4. Larger
5. Equal
6. ABC congruent to QRP.
7. 55
8. <B = <C
9. SSS Congruence rule
10. RHS Congruence rule
11. 6 cm
(In an isosceles triangle, the sides opposite to equal angles of a triangle are equal)
12. QR>PQ
(QR is the hypotenuse. Hypotenuse is always greater)
13. AC
(Side opposite to the larger angle is longer)
14. AAA Congruence rule
15. Greater

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