## CBSE Class 9 Triangles MCQ By Clarify Knowledge

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## CBSE Class 9 Triangles MCQ Table

Question 1.

In given figure, the measure of ∠BAC is

(a) 60°

(b) 50°

(c) 70°

(d) 80°

Question 2.

In figure if AE || DC and AB = AC, find the value of ∠ABD.

(a) 130°

(b) 110°

(c) 120°

(d) 70°Answer

Question 3.

In figure X is a point in the interior of square ABCD, AXYZ is also a square. If DY = 3 cm and AZ = 2 cm, then find BY.

(a) 5 cm

(b) 6 cm

(c) 7 cm

(d) 8 cmAnswer

Question 4.

In figure AB ⊥ AE, BC ⊥ AB, CE = DE and ∠AED = 120°, then find ∠ECD.

(a) 80°

(b) 70°

(c) 85°

(d) 60°Answer

Question 5.

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

(a) 5 cm

(b) 3 cm

(c) 4 cm

(d) 2.5 cmAnswer

Question 6.

In ΔABC, AB = AC and ∠B = 50°, then find ∠C.

(a) 50°

(b) 40°

(c) 80°

(d) 120°Answer

Question 7.

In figure, D is the mid-point of side BC of a ΔABC and ∠ABD = 50°. If AD = BD = CD, then find the measure of ∠ACD.

(a) 30°

(b) 70°

(c) 80°

(d) 40°Answer

Question 8.

In figure, ABC is an isosceles triangle whose side AC is produce to E and through C, CD is drawn parallel to BA. Find the value of x.

(a) 52°

(b) 156°

(c) 76°

(d) 104°Answer

Question 9.

In figure AB ⊥ BE and EF ⊥ BE. If BC = DE and AB = EF, then ΔABD is congruent to

(a) ΔEFC

(b) ΔECF

(c) ΔDEF

(d) ΔFECAnswer

Question 10.

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

(a) BD = CD

(b) BA > BD

(c) BD > BA

(d) CD > CAAnswer

Question 11.

It is given that ΔABC = ΔFDE and AB = 5 cm, ∠B = 40° and ∠A = 80°. Then which of the following is true?

(а) DF = 5 cm, ∠F = 60°

(b) DF = 5 cm, ∠E = 60°

(c) DE = 5 cm, ∠E = 60°

(d) DE = 5 cm, ∠D = 40°

Answer

Question 12.

Two sides of a triangle are of lengths 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) 3.4 cmAnswer

Question 13.

In ΔPQR, if ∠R > ∠Q, then

(a) QR > PR

(b) PQ > PR

(c) PQ < PR

(d) QR < PRAnswer

Question 14.

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

Question 15.

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