Question 32Asked in CTET December 2024 Paper 2 Maths & Science, 14 Dec 2024

In a pentagon ABCDE, ∠A = (2x + 9)°, ∠B = (2x + 1)°, ∠C = (2x − 1)°, ∠D = (2x + 5)° and ∠E = (2x − 4)°. Then, value of (2x + 10)° is :किसी पंचभुज ABCDE में, ∠A = (2x + 9)°, ∠B = (2x + 1)°, ∠C = (2x − 1)°, ∠D = (2x + 5)° और ∠E = (2x − 4)° है। तब, (2x + 10)° का मान है :

किसी पंचभुज ABCDE में, ∠A = (2x + 9)°, ∠B = (2x + 1)°, ∠C = (2x − 1)°, ∠D = (2x + 5)° और ∠E = (2x − 4)° है। तब, (2x + 10)° का मान है :
  1. A124°124°
  2. B114°114°
  3. C116°116°
  4. D118°118°
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Correct answer: (C) 116°116°

Explanation

Sum of angles of a pentagon = 540°. So 10x + 10 = 540, x = 53, and 2x + 10 = 116°.पंचभुज के कोणों का योग 540° होता है। अतः 10x + 10 = 540, x = 53, और 2x + 10 = 116°।

From CTET December 2024 Paper 2 Maths & Science, 14 Dec 2024 — Previous Year Paper

This is question 32 of CTET December 2024 Paper 2 Maths & Science, 14 Dec 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.