MCQ Questions for Class 10 Maths Triangles with Answers

# MCQ Questions for Class 10 Maths Triangles with Answers

## Class 10 Maths MCQs Chapter 6 Triangles

1. O is a point on side PQ of a APQR such that PO = QO = RO, then
(a) RS² = PR × QR
(b) PR² + QR² = PQ²
(c) QR² = QO² + RO²
(d) PO² + RO² = PR²

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2. In ABC, DE || AB. If CD = 3 cm, EC = 4 cm, BE = 6 cm, then DA is equal to
(a) 7.5 cm
(b) 3 cm
(c) 4.5 cm
(d) 6 cm

3. AABC is an equilateral A of side a. Its area will be…

4. In a square of side 10 cm, its diagonal = …
(a) 15 cm
(b) 10√2 cm
(c) 20 cm
(d) 12 cm

5. In a rectangle Length = 8 cm, Breadth = 6 cm. Then its diagonal = …
(a) 9 cm
(b) 14 cm
(c) 10 cm
(d) 12 cm

6. In a rhombus if d1 = 16 cm, d2 = 12 cm, its area will be…
(a) 16 × 12 cm²
(b) 96 cm²
(c) 8 × 6 cm²
(d) 144 cm²

7. In a rhombus if d1 = 16 cm, d2 = 12 cm, then the length of the side of the rhombus is
(a) 8 cm
(b) 9 cm
(c) 10 cm
(d) 12 cm

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8. If in two As ABC and DEF, $$\frac{\mathrm{AB}}{\mathrm{DF}}=\frac{\mathrm{BC}}{\mathrm{FE}}=\frac{\mathrm{CA}}{\mathrm{ED}}$$, then
(a) ∆ABC ~ ∆DEF
(b) ∆ABC ~ ∆EDF
(c) ∆ABC ~ ∆EFD
(d) ∆ABC ~ ∆DFE

9. It is given that ∆ABC ~ ∆DEF and $$\frac{\mathrm{BC}}{\mathrm{EF}}=\frac{1}{5}$$. Then $$\frac{\operatorname{ar}(D E F)}{\operatorname{ar}(A B C)}$$ is equal to
(а) 5
(b) 25
(c) $$\frac{1}{25}$$
(d) $$\frac{1}{5}$$

10. In ∠BAC = 90° and AD ⊥ BC. A Then

(а) BD.CD = BC²
(б) AB.AC = BC²

11. D and E are respectively the points on the sides AB and AC of a triangle ABC such that AD = 2 cm, BD = 3 cm, BC = 7.5 cm and DE || BC. Then, length of DE (in cm) is
(a) 2.5
(b) 3
(c) 5
(d) 6

12. If ΔABC ~ ΔDEF and ΔABC is not similar to ΔDEF then which of the following is not true?
(a) BC.EF = AC.FD
(b) AB.ED = AC.DE
(c) BC.DE = AB.EE
(d) BC.DE = AB.FD

13. If in two triangles DEF and PQR, ZD = ZQ and ZR = ZE, then which of the following is not true?

14. If ΔABC ~ ΔPQR, $$\frac{\mathrm{BC}}{\mathrm{QR}}=\frac{1}{3}$$ then $$\frac{\operatorname{ar}(PQR)}{\operatorname{ar}(BCA)}$$ is
(a) 9
(b) 3
(c) 1/3
(d) 1/9

15. If ΔABC ~ ΔQRP, $$\frac{\operatorname{ar}(\mathrm{ABC})}{\operatorname{ar}(\mathrm{PQR})}=\frac{9}{4}$$, AB = 18 cm and BC = 15 cm, then PR is equal to
(a) 10 cm
(b) 12 cm
(c) $$\frac{20}{3}$$cm
(d) 8 cm

16. If in triangles ABC and DEF,$$\frac{\mathrm{AB}}{\mathrm{DE}}=\frac{\mathrm{BC}}{\mathrm{FD}}$$ , then they will be similar, if
(a) ∠B = ∠E
(b) ∠A = ∠D
(c) ∠B = ∠D
(d) ∠A = ∠F

We hope the given MCQ Questions for Class 10 Maths Triangles with Answers will help you. If you have any query regarding CBSE Class 10 Maths Chapter 6 Triangles Multiple Choice Questions with Answers, drop a comment below and we will get back to you at the earliest.

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