# Triangle MCQ Class 9

Triangle - MCQ test 1

Q1. In triangle ABC, if AB=BC and ∠B = 70°, ∠A will be:

55°

70°

130°

60°

Q2. If two angles and the included side of one triangle are equal to two angles and the included side of another triangle. Then the congruency rule is ...........

SSA

SSS

ASA

SAS

Q3.Two sides of a triangle are of lengths 5 cm and 1.5 cm. The length of the third side of the triangle be

7.5 cm

6.5 cm

6.0 cm

8.5 cm

Q10.D is a point on the side of BC of a △ABC such that AD bisects ∠BAC

BD = CD

CD > BA

BA > BD

BD > BA

Q12.In triangle △PQR , ∠R > ∠Q Then which of following is true?

PR > QR

PQ < QR

PQ > QR

PQ = PR

Q13.D is a point on the side BC of a ΔABC such that AD bisects ∠BAC. Then

BD : DC = AB : AC

CD > CA

BD > BA

BA > BD

Q14. It is given that Δ ABC ≅ Δ FDE and AB = 5 cm, ∠B = 40° and ∠A = 60°. Then which of the following is true?

DF = 5 cm, ∠F = 60°

DF = 5 cm, ∠E = 60°

DE = 5 cm, ∠E = 60°

DE = 5 cm, ∠D = 40°

Q15. All the medians of a triangle are equal in case of a ..........triangle.

Scalene

Right angled

Equilateral

Isosceles

Q16. In triangle PQR if ∠Q = 90°, then:

PR is the longest side.

QR is the longest side.

PQ is the longest side.

None of these

Q17.In triangles ABC and PQR, AB = AC, ∠C = ∠P and ∠B = ∠Q. The two triangles are:

Isosceles and congruent

Isosceles but not congruent

Congruent but not isosceles

None of these

Q18.In triangles ABC and DEF, AB = FD and ∠A = ∠D. The two triangles will be congruent by SAS axiom if:

BC = EF

AC = EF

BC = DE

AC = DE

Q19.E and F are midpoints of equal sides AB and AC of triangle ABC. Then:

BF=AC

BF=AF

CE=AB

BF=CE

Q20. In an Isosceles Triangle ABC altitude BE and CF is drawn to the equal sides of the isosceles triangle – AB and AC respectively, then:

BE > CF

BE = CF

BE < CF

None of these

Q21. Area of triangle is found by which of following formulae,if length of all sides is known then

A= √s(s-a)(s-b)(s-c)

A= √s(s+a)(s+b)(s+c)

Both a and b

None of these

Q22.Perimeter of equilateral triangle of side a is ......

a

2a

4a

3a

Q23. Which of the following is not a criterion for congruence of triangles?

SAS

ASA

SSA

SSS

Q24. In ∆PQR, ∠P = 70° and ∠R = 30°. Which side of this triangle is longest?

PQ

QR

PR

None of these