Question
Download Solution PDFनीचे दी गई आकृति में, ∠ACB = 80°, ∠BAC = 45° और ∠BED = 75°, तो ∠BDE का मान ज्ञात कीजिए।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया है:
∠ACB = 80°, ∠BAC = 45° और ∠BED = 75°
संकल्पना:
एक त्रिभुज के सभी कोणों का योगफल = 180°
गणना:
ΔABC में:
∠BAC + ∠ACB + ∠CBA = 180°
⇒ ∠CBA = 180° – 80° – 45° = 55°
इस प्रकार,
∠DBE = ∠CBA = 55° (विपरीत कोण)
अब,
∠BDE + ∠DEB + ∠DBE = 180°
⇒ ∠BDE = 180° – 75° – 55° = 50°
∴ ∠BDE = 50°
Last updated on Jun 18, 2025
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