ఒక  అర్ధగోళం యొక్క వ్యాసార్థం 14 సెం.మీ. దాని వక్ర ఉపరితల వైశాల్యం (సెం.మీ2లో) ఎంత ఉంటుంది? (π = 22/7 ఉపయోగించండి)

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SSC GD Constable (2022) Official Paper (Held On : 31 Jan 2023 Shift 1)
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  1. 1232
  2. 1132
  3. 1098
  4. 1188

Answer (Detailed Solution Below)

Option 1 : 1232
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ఇచ్చింది:

ఒక అర్ధగోళం వ్యాసార్థం = 14 సెం.మీ.

భావన:

ఒక అర్ధగోళం యొక్క వక్ర ఉపరితల వైశాల్యం = 2πr2

సాధన:

⇒ వక్ర ఉపరితల వైశాల్యం = 2 × (22/7) × 142 = 1232 సెం.మీ2

అందువల్ల, అర్ధగోళం యొక్క వక్ర ఉపరితల వైశాల్యం 1232 సెం.మీ2.

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