Two parallel lines and are cut by a transversal

MATHEMATICS · Single correct · CBSE · Mathematics · Lines and Angles · Lines and Angles

Problem

Two parallel lines ll and mm are cut by a transversal tt. The angles are numbered as follows: at line ll – ∠1\angle1 (upper left), ∠2\angle2 (upper right), ∠3\angle3 (lower right), ∠4\angle4 (lower left); at line mm – ∠5\angle5 (upper left), ∠6\angle6 (upper right), ∠7\angle7 (lower right), ∠8\angle8 (lower left). Which pair of angles is an example of alternate exterior angles? (a) (3, 7)(3,\,7) (b) (2, 8)(2,\,8) (c) (1, 8)(1,\,8) (d) (1, 2)(1,\,2)

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