Give me 20 questions of Maths Unit 7 Triangles CLASS 9 (MCQ's ONLY)
Answers
Answer:
Step-by-step explanation:
MCQ Questions & Answers from CBSE Class 9 Maths Chapter 7 Triangles are given below:
Q1. 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 ≅ ∆EFD
Answer: (b)
Q2. In ∆ABC, BC = AB and ∠B = 80°. Then ∠A is equal to:
a) 80o
b) 40o
c) 50o
d) 100o
Answer: (c)
Q3. 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 cm
Answer: (d)
Q4. In ∆PQR, if ∠R > ∠Q, then
a) QR > PR
b) PQ > PR
c) PQ < PR
d) QR < PR
Answer: (b)
Q5. 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 > BD
Answer: (a)
Q6. 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: (b)
Q7. All the medians of a triangle are equal in case of a:
a) Scalene triangle
b) Right angled triangle
c) Equilateral triangle
d) Isosceles triangle
Answer: (c)
8-11 in pic
Q12. If in ΔPQR, PQ = PR then:
a) ∠P = ∠R
b) ∠P = ∠Q
c) ∠Q = ∠R
d) None of these
Answer: (c)
Q13. In a triangle ABC, ∠B = 35° and ∠C = 60°, then
a) ∠A = 80°
b) ∠A = 85°
c) ∠A = 120°
d) ∠A = 145°
Answer: (b)
Q14. 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 isosceles
Answer: (a)
Q15. 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 = DE
Answer: (b)
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BY Tolety Roshan
Step-by-step explanation:
1. The exterior angle of a triangle, formed by a ray produced is equal to-
(a) sum of two opposite angles
(b) sum of the angles
(c) 90°