हिंदी

In the given figure, PQ || ST. Then, the value of x + y is ______. - Mathematics

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प्रश्न

In the given figure, PQ || ST. Then, the value of x + y is ______.

विकल्प

  • 125°

  • 135°

  • 145°

  • 120°

MCQ
रिक्त स्थान भरें

उत्तर

In the given figure, PQ || ST. Then, the value of x + y is 135°.

Explanation:


Since, PQ || ST and SO is a transversal.

∴ x = 85°  ......[Altemate interior angles]

Now, PO is a straight line.

∴ ∠PQR + ∠RQO = 180°  ......[Linear pair]

⇒ 130° + y = 180°

⇒ y = 180° – 30° = 50°

∴ x + y = 85° + 50° = 135°

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 5: Lines and Angles - Exercise [पृष्ठ १३६]

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एनसीईआरटी एक्झांप्लर Mathematics [English] Class 7
अध्याय 5 Lines and Angles
Exercise | Q 40. | पृष्ठ १३६

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