5 సెం.మీ, 7 సెం.మీ మరియు 11 సెం.మీ కొలతలు కలిగిన దీర్ఘఘనం యొక్క మొత్తం ఉపరితల వైశాల్యాన్ని (సెం.మీ2లో) కనుగొనండి?

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SSC CGL 2023 Tier-I Official Paper (Held On: 20 Jul 2023 Shift 2)
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  1. 385
  2. 334
  3. 343
  4. 167

Answer (Detailed Solution Below)

Option 2 : 334
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Detailed Solution

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ఇచ్చింది:

దీర్ఘఘనం యొక్క కొలతలు = 5 సెం.మీ × 7 సెం.మీ × 11 సెం.మీ 

ఉపయోగించిన సూత్రం:

దీర్ఘఘనం యొక్క మొత్తం ఉపరితల వైశాల్యం = 2(lb + bh + hl)

గణన:

దీర్ఘఘనం యొక్క మొత్తం ఉపరితల వైశాల్యం = 2(5 × 7 + 7 × 11 + 11 × 5)

⇒ 2(35 + 77 + 55)

⇒ 2 × 167 

⇒ 334 సెం.మీ2

అవసరమైన ఫలితం 334 సెం.మీ2.

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