ICSE Class 9 Isosceles Triangle MCQ New Pattern

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ICSE Class 9 Isosceles Triangle MCQ Table

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ICSE Class 9 Isosceles Triangle MCQ HERE

Q1. If E and F are the midpoints of equal sides AB and AC of a triangle ABC. Then:
a) BF=AC
b) BF=AF
c) CE=AB
d) BF = CE

Q2. ABC is an isosceles triangle in which altitudes BE and CF are drawn to equal sides AC and AB respectively. Then:
a) BE>CF
b) BE<CF
c) BE=CF
d) None of the above

Q3. If ABC and DBC are two isosceles triangles on the same base BC. Then:
a) ∠ABD = ∠ACD
b) ∠ABD > ∠ACD
c) ∠ABD < ∠ACD
d) None of the above

Q4. If ABC is an equilateral triangle, then each angle equals to:
a) 90°
B)180°
c) 120°
d) 60°

Q5. If AD is an altitude of an isosceles triangle ABC in which AB = AC. Then:
a) BD=CD
b) BD>CD
c) BD<CD
d) None of the above

Q6. In a right triangle, the longest side is:
a) Perpendicular
b) Hypotenuse
c) Base
d) None of the above

Q7. In triangle ABC, if AB=BC and ∠B = 70, ∠A will be:
a) 70
b) 110
c) 55
d) 130

Q8. For two triangles, 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:
a) SSS
b) ASA
c) SAS
d) None of the above

Q9. A triangle in which two sides are equal is called:
a) Scalene triangle
b) Equilateral triangle
c) Isosceles triangle
d) None of the aboveAnswer

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Q10. The angles opposite to equal sides of a triangle are:
a) Equal
b) Unequal
c) supplementary angles
d) Complementary anglesAnswer

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Q11. In two triangles DEF and PQR, if DE = QR, EF = PR and FD = PQ, then
a) ∆DEF ≅ ∆PQR
b) ∆FED ≅ ∆PRQ
c) ∆EDF ≅ ∆RPQ
d) ∆PQR ≅ ∆EFDAnswer

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Q12. In ∆ABC, BC = AB and ∠B = 80°. Then ∠A is equal to:
a) 80^o
b) 40^o
c) 50^o
d) 100^oAnswer

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Q13. Two sides of a triangle are of length 5 cm and 1.5 cm. The length of the third side of the triangle cannot be:
a) 3.6 cm
b) 4.1 cm
c) 3.8 cm
d) 6.9 cmAnswer

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Q14. In ∆PQR, if ∠R > ∠Q, then
a) QR > PR
b) PQ > PR
c) PQ < PR
d) QR < PRAnswer

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Q15. D is a point on the side BC of a ΔABC such that AD bisects ∠BAC. Then
a) BD : DC = AB : AC
b) CD > CA
c) BD > BA
d) BA > BDAnswer

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Q16. It is given that Δ ABC ≅ Δ FDE and AB = 5 cm, ∠B = 40° and ∠A = 80°. Then which of the following is true?
a) DF = 5 cm, ∠F = 60°
b) DF = 5 cm, ∠E = 60°
c) DE = 5 cm, ∠E = 60°
d) DE = 5 cm, ∠D = 40°Answer

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Q17. All the medians of a triangle are equal in case of a:
a) Scalene triangle
b) Right angled triangle
c) Equilateral triangle
d) Isosceles triangleAnswer

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Q18. In the given figure, PS is the median then ∠QPS?

a) 40^o
b) 50^o
c) 80^o
d) 90^oAnswer

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Q19. In triangle PQR if ∠Q = 90°, then:
a) PQ is the longest side
b) QR is the longest side
c) PR is the longest side
d) None of theseAnswer

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Q20. In the given figure, AB = AC and ∠B = 50° then; ∠A is:

a) 50^o
b) 80^o
c) 100^o
d) 130^oAnswer

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Q21. In the given figure, if the exterior angle is 135^o then ∠P is:

a) 45^o
b) 60^o
c) 80^o
d) 90^oAnswer

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Q22. If in ΔPQR, PQ = PR then:
a) ∠P = ∠R
b) ∠P = ∠Q
c) ∠Q = ∠R
d) None of theseAnswer

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Q23. In a triangle ABC, ∠B = 35° and ∠C = 60°, then
a) ∠A = 80°
b) ∠A = 85°
c) ∠A = 120°
d) ∠A = 145°Answer

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Q24. In triangles ABC and PQR, AB = AC, ∠C = ∠P and ∠B = ∠Q. The two triangles are:
a) Isosceles but not congruent
b) Isosceles and congruent
c) Congruent but not isosceles
d) Neither congruent nor isoscelesAnswer

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Q25. In triangles ABC and DEF, AB = FD and ∠A = ∠D. The two triangles will be congruent by SAS axiom if:
a) BC = EF
b) AC = DE
c) AC = EF
d) BC = DEAnswer

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