ఒకవేళ గోళం యొక్క వ్యాసం 3.5 cm అయితే, అప్పుడు గోళం యొక్క సంపూర్ణతల వైశాల్యం ఎంత?

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SSC CGL 2022 Tier-I Official Paper (Held On : 03 Dec 2022 Shift 1)
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  1. 45.75 సెం.మీ2
  2. 42.6 సెం.మీ2
  3. 38.5 సెం.మీ2
  4. 34.25 సెం.మీ2

Answer (Detailed Solution Below)

Option 3 : 38.5 సెం.మీ2
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Detailed Solution

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ఇచ్చింది:

ఒక గోళం యొక్క వ్యాసం 3.5 సెం.మీ.

ఉపయోగించిన భావన:

మొత్తం ఉపరితల వైశాల్యం = 4πr2

ఇక్కడ r = వ్యాసార్థం

గణన:

మొత్తం ఉపరితల వైశాల్యం = 4 × 22/7 × (3.5/2)2

⇒ 4 × 22/7 × 12.25/4

⇒ 22/7 × 12.25

⇒ 38.5

గోళం యొక్క మొత్తం ఉపరితల వైశాల్యం 38.5 సెం.మీ2.

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