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9th Class - Math | Chapter: Triangles MCQs

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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

(D) BF = CE

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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

(D) None of the above

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Q3) If ABC and DBC are two isosceles triangles on the same base BC. Then

(A) ∠ABD = ∠ACD

(B) ∠ABD > ∠ACD

(D) None of the above

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Q4) If ABC is an equilateral triangle, then each angle equals to

(A) 90°

(B) 180°

(D) 60°

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Q5) If AD is an altitude of an isosceles triangle ABC in which AB = AC. Then

(A) BD=CD

(B) BD>CD

(D) None of the above

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Q6) In a right triangle, the longest side is

(A) Perpendicular

(B) Hypotenuse

(D) None of the above

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Q7) In triangle ABC, if AB=BC and ∠B = 70, ∠A will be

(A) 70

(B) 110

(D) 130

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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

(D) None of the above

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Q9) A triangle in which two sides are equal is called

(A) Scalene triangle

(B) Equilateral triangle

(D) None of the above

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Q10) The angles opposite to equal sides of a triangle are

(A) Equal

(B) Unequal

(D) Complementary angles

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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

(D) ∆PQR ≅ ∆EFD

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Q12) In ∆ABC, BC = AB and ∠B = 80°. Then ∠A is equal to

(A) 80^o

(B) 40^o

(D) 100^o

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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

(D) 6.9 cm

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Q14) In ∆PQR, if ∠R > ∠Q, then

(A) QR > PR

(B) PQ > PR

(D) QR < PR

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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

(D) BA > BD

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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°

(D) DE = 5 cm, ∠D = 40°

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Q17) All the medians of a triangle are equal in case of a:

(A) Scalene triangle

(B) Right angled triangle

(D) Isosceles triangle

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

(A) 40^o

(B) 50^o

(D) 90^o

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Q19) In triangle PQR if ∠Q = 90°, then

(A) PQ is the longest side

(B) QR is the longest side

(D) None of these

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

(A) 50^o

(B) 80^o

(D) 130^o

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Q21) 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

(D) BC = DE

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Q22) 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

(D) Neither congruent nor isosceles

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Q23) In a triangle ABC, ∠B = 35° and ∠C = 60°, then

(A) ∠A = 80°

(B) ∠A = 85°

(D) ∠A = 145°

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Q24) If in ΔPQR, PQ = PR then

(A) ∠P = ∠R

(B) ∠P = ∠Q

(D) None of these

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Q25) In the given figure, if the exterior angle is 135<sub>o</sub> then ∠P is

(A) 45^o

(B) 60^o

(D) 90^o

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9th Class - Math | Chapter: Triangles MCQs

Q1) If E and F are the midpoints of equal sides AB and AC of a triangle ABC. Then

Q2) ABC is an isosceles triangle in which altitudes BE and CF are drawn to equal sides AC and AB respectively. Then

Q3) If ABC and DBC are two isosceles triangles on the same base BC. Then

Q4) If ABC is an equilateral triangle, then each angle equals to

Q5) If AD is an altitude of an isosceles triangle ABC in which AB = AC. Then

Q6) In a right triangle, the longest side is

Q7) In triangle ABC, if AB=BC and ∠B = 70, ∠A will be

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

Q9) A triangle in which two sides are equal is called

Q10) The angles opposite to equal sides of a triangle are

Q11) In two triangles DEF and PQR, if DE = QR, EF = PR and FD = PQ, then

Q12) In ∆ABC, BC = AB and ∠B = 80°. Then ∠A is equal to

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

Q14) In ∆PQR, if ∠R > ∠Q, then

Q15) D is a point on the side BC of a ΔABC such that AD bisects ∠BAC. Then

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?

Q17) All the medians of a triangle are equal in case of a:

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

Q19) In triangle PQR if ∠Q = 90°, then

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

Q21) In triangles ABC and DEF, AB = FD and ∠A = ∠D. The two triangles will be congruent by SAS axiom if

Q22) In triangles ABC and PQR, AB = AC, ∠C = ∠P and ∠B = ∠Q. The two triangles are

Q23) In a triangle ABC, ∠B = 35° and ∠C = 60°, then

Q24) If in ΔPQR, PQ = PR then

Q25) In the given figure, if the exterior angle is 135<sub>o</sub> then ∠P is

Subjects (9th Class)

Chapters (Math)