Unit Test Paper 2026-27 Mathematics Class 10 Chapter 6 Triangles
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Unit Test Paper 2026-27 Mathematics Class 10 Chapter 6 Triangles
6 Triangles
Unit test - I
Unit test - I-6 Triangles
ATP Unit Test Paper
Mathematics -X
Chapter - 6
Timing: 1 Hour M.M : 20
1 अंक के प्रश्न:
Q1. Let Δ ABC ~ Δ DEF and their areas be, respectively, 64 cm2 and 121 cm2. If EF = 15.4 cm, find BC.
यदि Δ ABC ~ Δ DEF है और उनका क्षेत्रफल क्रमश: 64 cm2 और 121 cm2 हैं | यदि EF = 15.4 cm है तो BC ज्ञात कीजिये |
Q2. Find the value of x. where in Δ ABC DE||BC.
Δ ABC में DE||BC है तो x का मान ज्ञात कीजिये |

Q3. In given Fig. ABC and DBC are two triangles on the
same base BC. If AD intersects BC at O, show that

दी गई आकृति में ABC और DBC दो त्रिभुज एक ही आधार BC पर स्थित है | यदि AD, BC को बिंदु O पर प्रतिच्छेद करता है तो सिद्ध कीजिए कि


Q4. D is a point on the side BC of a triangle ABC such that ∠ ADC = ∠ BAC. Show that CA2 = CB.CD.
त्रिभुज ABC के भुजा BC पर D बिंदु इस प्रकार है कि ∠ ADC = ∠ BAC हैं तो दर्शाइए कि CA2 = CB.CD हैं |
2 अंक के प्रश्न:
Q5. if Δ ABE ≅ Δ ACD, show that
Δ ADE ~ Δ ABC.
यदि Δ ABE ≅ Δ ACD है तो दर्शाइए कि Δ ADE ~ Δ ABC है |

3 अंक के प्रश्न:
Q6. A girl of height 90 cm is walking away from the base of a lamp-post at a speed of 1.2 m/s. If the lamp is 3.6 m above the ground, find the length of her shadow after 4 seconds.
90 cm की लंबाई वाली एक लड़की बल्ब लगे एक खंभे के आधार से परे 1.2 m/s की चल से चल रही है | यदि बल्ब भूमि से 3.6 cm की ऊँचाई पर है, तो 4 से सेकेंड बाद उस लड़की की छाया की लंबाई ज्ञात कीजिए |
Q7. S and T are points on sides PR and QR of Δ PQR such that ∠ P = ∠ RTS. Show that
Δ RPQ ~ Δ RTS.
Δ PQR की भुजाओं PR और QR पर क्रमश: बिंदु S और T इस प्रकार स्थित है कि ∠ P = ∠ RTS है | दर्शाइए कि Δ RPQ ~ Δ RTS हैं |
4 अंक के प्रश्न:
Q8. Prove that the area of an equilateral triangle described on one side of a square is equal to half the area of the equilateral triangle described on one of its diagonals.
सिद्ध कीजिए कि एक वर्ग की किसी भुजा पर बनाए गए समबाहु त्रिभुज का क्षेत्रफल उसी वर्ग के एक विकर्ण पर बनाए गए समबाहु त्रिभुज के क्षेत्रफल का आधा होता है |
Q9. Prove that the ratio of the areas of two similar triangles is equal to the
square of the ratio of their corresponding sides.
सिद्ध कीजिये कि दो समरूप त्रिभुजों के क्षेत्रफलों का अनुपात इसकी संगत भुजाओं के अनुपात के वर्ग के बराबर होता है |
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6 Triangles
Unit test - II
Unit test - II-6 Triangles
Unit Test Class - X
Mathematics
Chapter - 6. Triangles
Timing: 1Hour M.M 20
All questions are compulsory.
SECTION-A
Q1. In the given figure, ΔABC ~ ΔPQR. Find (m + n).

Q2. In the given figure, DE ∥ QR, PQ = 5.6 cm and PD = 1.6 cm. Find PE : ER.

Q3. ΔABC ~ ΔPQR, AB = 3 cm, BC = 2 cm, CA = 2.5 cm and QR = 6 cm. Find the perimeter of ΔPQR.


which triangles are similar?
SECTION-B
Q5. In the given figure, QR ∥ BC and QP ∥ AC. If PB = 12 cm, PC = 20 cm and AR = BQ = 15 cm, find AQ and CR.

Q6. In the given figure, BD ⟂ AC and CE ⟂ AB. Prove that BP × PD = EP × PC.
Q7. If one diagonal of a trapezium divides the other diagonal in the ratio 1 : 3, prove that one parallel side is three times the other.
SECTION-C
Q8. If AB ⟂ BC, PQ ⟂ AC and MN ⟂ BC, prove that ΔAPQ ~ ΔMCN.

Q9. E is a point on AD produced of parallelogram ABCD and BE intersects CD at F. Show that AB × BC = AE × CF.
SECTION-D
Q10. State and prove the Basic Proportionality Theorem.
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6 Triangles
Unit test - III
Unit test - III-6 Triangles
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6 Triangles
Unit test - IV
Unit test - IV-6 Triangles
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Select Mathematics Class 10 Unit Test
1. 1 Real Numbers
2. 2 Polynomials
3. 3 Pair of Linear Equations in Two Variables
4. 4 Quadratic Equations
5. 5 Arithmetic Progressions
6. 6 Triangles
7. 7 Coordinate Geometry
8. 8 Introduction to Trigonometry
9. 9 Some Applications of Trigonometry
10. 10 Circles
11. 11 Constructions
12. 12 Areas Related to Circles
13. 13 Surface Areas and Volumes
14. 14 Statistics
15. 15 Probability
16. 3. दो चरों वाले रैखिक समीकरणों का युग्म
17. 1. वास्तविक संख्याएँ
18. 2. बहुपद
19. 4. द्विघात समीकरण
20. 5. समान्तर श्रेढ़ी
21. 6. त्रिभुज
22. 7. निर्देशांक ज्यामिति
23. 8. त्रिकोणमिति का परिचय
24. 9. त्रिकोणमिति का अनुप्रयोग
25. 10. वृत्त
26. 11. रचनाएँ
27. 12. वृतों से सम्बंधित क्षेत्रफल
28. 13. पृष्ठीय क्षेत्रफल एवं आयतन
29. 14. सांख्यिकी
30. 15. प्रायिकता
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