Q38 of 113 Page 128

In Fig. 5.30, which one of the following is not true?

∠1 = ∠3 (Corresponding angles)


∠3 + ∠5 = 1800 (Supplementary pairs)


So ∠1 + ∠5 = 180°


∠5 = ∠7 (Corresponding angles)


∠2 + ∠7 = 1800 (Supplementary pairs)


So ∠2 + ∠5 = 180°


∠1 = ∠3 (Corresponding angles)


∠1 + ∠8 = 1800 (Supplementary pairs)


So ∠3 + ∠8 = 180°


∠2 = ∠4 (Corresponding angles)


∠3 = ∠4 (Vertically Opposite angle)


So ∠3 = ∠2


Hence ∠3 and ∠2 are not supplementary pairs

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