Question
Download Solution PDFPQRS एक चक्रीय समलंब चतुर्भुज है जहाँ PQ, SR के समांतर है और PQ व्यास है। यदि ∠QPR = 40° है, तो ∠PSR बराबर है:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
PQRS एक चक्रीय समलंब चतुर्भुज है जहाँ PQ, RS के समांतर है।
PQ व्यास है और ∠QPR = 40°
संकल्पना:
अर्धवृत्त में बना कोण समकोण होता है।
एक चक्रीय समलंब चतुर्भुज के सम्मुख कोणों का योग 180° होता है।
गणना:
त्रिभुज PQR में,
∠RPQ + ∠RQP + ∠QRP = 180° [कोण योग गुणधर्म]
⇒ 40° + ∠RQP + 90° = 180°
⇒ ∠RQP = 180° - 130° = 50°
∠RQP + ∠PSR = 180° [संपूरक कोण]
∴ ∠PSR = 180° - 50° = 130°
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