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प्रश्न
In the given figure, which one of the following is not true?
विकल्प
∠1 + ∠5 = 180°
∠2 + ∠5 = 180°
∠3 + ∠8 = 180°
∠2 + ∠3 = 180°
उत्तर
∠2 + ∠3 = 180°
Explanation:
Since, PQ || RS, line l is a transversal.
∴ ∠2 + ∠5 = 180° ......(i) [Co-interior angles]
∠3 + ∠8 = 180° ......(ii) [Co-interior angles]
∠1 = ∠2 ......(iii) [Vertically opposite angles]
∴ ∠1 + ∠5 = 180° ......[By (i) and (iii)]
∠2 = ∠3 ......[Alternate interior angles]
But ∠2 + ∠3 = 180°
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संबंधित प्रश्न
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(5) ∠s and `square`
(6) ∠w and `square`
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