Question 32Asked in CTET February 2026 Paper 1, 1 Mar 2026

In ∆ABC, sides BC and BA are produced to D and E, respectively. If ∠ACD = 120° and ∠CAE = 130°, then what is the measure of ∠ABC?∆ ABC में, भुजा BC और BA को क्रमशः D और E तक बढ़ाया गया है । यदि ∠ ACD = 120° और ∠ CAE = 130° है, तो ∠ ABC की माप क्या है ?

∆ ABC में, भुजा BC और BA को क्रमशः D और E तक बढ़ाया गया है । यदि ∠ ACD = 120° और ∠ CAE = 130° है, तो ∠ ABC की माप क्या है ?
  1. A65°65°
  2. B70°70°
  3. C75°75°
  4. D80°80°
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Correct answer: (B) 70°70°

Explanation

∠ACB = 180° − 120° = 60° and ∠BAC = 180° − 130° = 50°. So ∠ABC = 180° − 60° − 50° = 70°.∠ACB = 180° − 120° = 60° और ∠BAC = 180° − 130° = 50°। अतः ∠ABC = 180° − 60° − 50° = 70°।

From CTET February 2026 Paper 1, 1 Mar 2026 — Previous Year Paper

This is question 32 of CTET February 2026 Paper 1, 1 Mar 2026 — 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.