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ఒక వృత్తం యొక్క వృత్తపరిధి 22 సెం.మీ, అర్థవృత్తం యొక్క వైశాల్యం కనుక్కోండి.

  1. 38.5 చ.సెం.మీ
  2. 19.25 చ.సెం.మీ
  3. 44 చ.సెం.మీ
  4. 77 చ.సెం.మీ

Answer (Detailed Solution Below)

Option 2 : 19.25 చ.సెం.మీ
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ఇవ్వబడిన వృత్తపరిధి = 22 సెం.మీ

∴ 2πr = 22

2 × r = 7

అర్థవృత్తం వైశాల్యం  

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