కింది చిత్రంలో 'x' విలువ:

F1 Suhani Madhuri 28.10.2021 D2

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  1. 60°
  2. 75°
  3. 80°
  4. 85°

Answer (Detailed Solution Below)

Option 1 : 60°
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HP JBT TET 2021 Official Paper
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ఇచ్చిన దత్తాంశం:

బొమ్మ = F1 Suhani Madhuri 28.10.2021 D2

కాన్సెప్ట్:

సంపూరక కోణం యొక్క మొత్తం = 180°

త్రిభుజం యొక్క అన్ని అంతర కోణాల మొత్తం = 180°

సాధన:

F1 Suhani Madhuri 28.10.2021 D3

⇒ In ΔABC 

⇒ ∠ADB + ∠ADC = 180° 

⇒ 108° + ∠ADC = 180° 

⇒ ∠ADC = 180° - 108° = 72° 

⇒  ΔADC లో

⇒ ∠ADC + ∠ACD + ∠DAC = 180° 

⇒ 72° + x° + 48° = 180° 

⇒ x° = 180° - 48° - 72° = 180° - 120° = 60° 

అవసరమైన ఫలితం 60°.

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