Question
Download Solution PDFনিম্নলিখিত চিত্রে 'x' এর মান কত ?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত:
চিত্রটি হল =
ধারণা:
সম্পূরক কোণের সমষ্টি = 180°
ত্রিভুজের সমস্ত অভ্যন্তরীণ কোণের সমষ্টি = 180°
গণনা:
⇒ ΔABC এ
⇒ ∠ADB + ∠ADC = 180°
⇒ 108° + ∠ADC = 180°
⇒ ∠ADC = 180° - 108° = 72°
⇒ ΔADC এ
⇒ ∠ADC + ∠ACD + ∠DAC = 180°
⇒ 72° + x° + 48° = 180°
⇒ x° = 180° - 48° - 72° = 180° - 120° = 60°
∴ নির্ণেয় উত্তর হল 60°
Last updated on Jun 6, 2025
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