Question 51Asked in CTET January 2024 Paper 2 Maths & Science, 21 Jan 2024

In triangles ABC and DEF; ∠B = 90°, BC = 8 cm, ∠A = 40°, DE = 8 cm, ∠F = 40° and ∠E = 90°. Then, which of the following statements is true ?त्रिभुजों ABC और DEF में; ∠B = 90°, BC = 8 cm, ∠A = 40°, DE = 8 cm, ∠F = 40° और ∠E = 90° है। तब, निम्न कथनों में से कौन-सा कथन सत्य है?

त्रिभुजों ABC और DEF में; ∠B = 90°, BC = 8 cm, ∠A = 40°, DE = 8 cm, ∠F = 40° और ∠E = 90° है। तब, निम्न कथनों में से कौन-सा कथन सत्य है?
  1. A∆ABC ≅ ∆DEF, by RHS∆ABC ≅ ∆DEF, RHS द्वारा
  2. B∆ABC ≅ ∆FED, by RHS∆ABC ≅ ∆FED, RHS द्वारा
  3. C∆ABC ≅ ∆DFE, by AAS∆ABC ≅ ∆DFE, AAS द्वारा
  4. D∆ABC ≅ ∆FED, by AAS∆ABC ≅ ∆FED, AAS द्वारा
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Correct answer: (D) ∆ABC ≅ ∆FED, by AAS∆ABC ≅ ∆FED, AAS द्वारा

Explanation

∠B = ∠E = 90°, ∠A = ∠F = 40° and the side BC (opposite ∠A) equals ED (opposite ∠F). Two angles and a non-included side match with A ↔ F, B ↔ E, C ↔ D, so ∆ABC ≅ ∆FED by AAS. RHS cannot be used because the hypotenuses are not given.∠B = ∠E = 90°, ∠A = ∠F = 40° और भुजा BC (∠A के सामने) = ED (∠F के सामने) है। दो कोण और एक अंतर्गत न आने वाली भुजा मिलती है, जिसमें A ↔ F, B ↔ E, C ↔ D, इसलिए ∆ABC ≅ ∆FED, AAS द्वारा। RHS प्रयोग नहीं हो सकता क्योंकि कर्ण नहीं दिए गए हैं।

From CTET January 2024 Paper 2 Maths & Science, 21 Jan 2024 — Previous Year Paper

This is question 51 of CTET January 2024 Paper 2 Maths & Science, 21 Jan 2024 — Previous Year Paper. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.