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Q: यदि त्रिभुज ABC में, कोणों का अनुपात 4:3:5 है, तो कोण ज्ञात कीजिए।
  • A. 20°, 50°, 70°
  • B. 60°, 45°, 75°
  • C. 20°, 15°, 25°
  • D. 40°, 30°, 50°
Correct Answer: Option B - प्रश्नानुसार माना A = 4x, B = 3x, C = 5x ∆ABC में 4x + 3x + 5x = 180° 12x = 180° x = 15° A = 4 × 15° = 60°, B = 3 × 15 = 45° C = 5 × 15 = 75°
B. प्रश्नानुसार माना A = 4x, B = 3x, C = 5x ∆ABC में 4x + 3x + 5x = 180° 12x = 180° x = 15° A = 4 × 15° = 60°, B = 3 × 15 = 45° C = 5 × 15 = 75°

Explanations:

प्रश्नानुसार माना A = 4x, B = 3x, C = 5x ∆ABC में 4x + 3x + 5x = 180° 12x = 180° x = 15° A = 4 × 15° = 60°, B = 3 × 15 = 45° C = 5 × 15 = 75°