Triangles MCQ Questions for Class 9 Maths Chapter 7 with Answers

We have completed the NCERT/CBSE chapter-wise Multiple Choice Questions for Class 9 Mathematics book Chapter 7 Triangles with Answers by expert subject teacher for latest syllabus and examination. You can Prepare effectively for the exam, Taking the help of the Class 9 Mathematics Objective Questions PDF free of cost from here. Students can take a free test of the Multiple Choice Questions of Triangles. Each Questions has four options followed by the right answer. Download the Mathematics Quiz Questions with Answers for Class 9 free Pdf and prepare to exam and help students understand the concept very well.

MCQ Questions for Class 9 Mathematics with Answers

Q1. In a right triangle, the longest side is:

(i) Perpendicular
(ii) Hypotenuse
(iii) Base
(iv) None of the above

(ii) Hypotenuse

Q2. If ABC and DBC are two isosceles triangles on the same base BC. Then:

(i) ∠ABD = ∠ACD
(ii) ∠ABD > ∠ACD
(iii) ∠ABD < ∠ACD
(iv) None of the above

(i) ∠ABD = ∠ACD

Q3. In ΔABC, ∠C = ∠A and BC = 4 cm and AC = 5 cm, then find length of AB.

(i) 5 cm
(ii) 3 cm
(iii) 4 cm
(iv) 2.5 cm

(iii) 4 cm

Q4. If AB = QR, BC=RP and CA = QP, then which of the following holds?

(i) △BCA ≅ △PQR
(ii) △ABC ≅ △PQR
(iii) △CBA ≅ △PQR
(iv) △CAB ≅ △PQR

(iv) △CAB ≅ △PQR

Q5. If two sides of a triangle are equal, the angles opposite to these sides are

(i) supplementary
(ii) equal
(iii) right angles
(iv) not equal

(ii) equal

Q6. If the altitudes from vertices of a triangle to the opposite sides are equal, then the triangles is

(i) Scalene
(ii) Isosceles
(iii) Equilateral
(iv) Right-angled

(ii) Isosceles

Q7. If ABC is an equilateral triangle, then each angle equals to:

(i) 90°
(ii)180°
(iii) 120°
(iv) 60°

(iv) 60°

Q8. D is a point on the side BC of a ΔABC such that AD bisects ∠BAC. Then

(i) BD = CD
(ii) BA > BD
(iii) BD > BA
(iv) CD > CA

(ii) BA > BD

Q9. It is not possible to construct a triangle when the lengths of its sides are

(i) 4 cm, 6 cm, 6 cm
(ii) 9.3 cm, 5.2 cm, 7.4 cm
(iii) 6 cm, 7 cm, 8 cm
(iv) 5.3 cm, 2.2 cm, 3.1 cm

(iv) 5.3 cm, 2.2 cm, 3.1 cm

Q10. If ΔABC ≌ ΔPQR then which of the following is true:

(i) CA = RP
(ii) AB = RP
(iii) AC = RQ
(iv) CB = QP

(i) CA = RP

Q11. If two triangles ABC and PQR are congruent under the correspondence A ↔ P, B ↔ Q, and C ↔ R, then symbolically, it is expressed as

(i) ΔABC ≅ ΔPQR
(ii) ΔABC = ΔPQR
(iii) ΔABC and ΔPQR are scalene triangles
(iv) ΔABC and ΔPQR are isosceles triangles

(i) ΔABC ≅ ΔPQR

Q12. If AD is an altitude of an isosceles triangle ABC in which AB = AC. Then:

(i) BD=CD
(ii) BD>CD
(iii) BD<CD
(iv) None of the above

((iii)

Q13. In ΔPQR, if ∠R > ∠Q, then

(i) QR > PR
(ii) PQ > PR
(iii) PQ < PR
(iv) QR < PR

(ii) PQ > PR

Q14. In △ABC, if ∠A = 45∘ and ∠B = 70∘, then the shortest and the longest sides of the triangle are respectively,

(i) BC,AB
(i) AB,AC
(iii) AB,BC
(iv) BC,AC

(iv) BC,AC

Q15. The perimeter of a triangle is _ the sum of its medians.

(i) less than
(ii) greater than twice
(iii) equal to
(iv) greater than

(iv) greater than

Q16. ABC is an isosceles triangle in which altitudes BE and CF are drawn to equal sides AC and AB respectively. Then:

(i) BE > CF
(ii) BE < CF
(iii) BE = CF
(iv) None of the above

(iii) BE = CF

Q17. In a right triangle, the longest side is:

(i) Perpendicular
(ii) Hypotenuse
(iii) Base
(iv) None of the above

(ii) Hypotenuse

Q18. △ABC = △PQR, then which of the following is true?

(i) CB = QP
(ii) CA = RP
(iii) AC = RQ
(iv) AB = RP

(ii) CA = RP

Q19. A triangle can have:

(i) Two obtuse angles
(ii) Two acute angles
(iii) Two right angles
(iv) All angles more than 60°

(ii) Two acute angles

Q20. The angles opposite to equal sides of a triangle are:

(i) Equal
(ii) Unequal
(iii) supplementary angles
(iv) Complementary angles

(i) Equal

Q21. In ∆ABC, BC = AB and ∠B = 80°. Then ∠A is equal to:

(i) 80°
(ii) 40°
(iii) 50°
(iv) 100°

(iii) 50°

Q22. In △ABC, ∠A = 35∘ and ∠B = 65∘, then the longest side of the triangle is:

(i) AC
(ii) BC
(iii) AB
(iv) None of these

(iii) AB

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