5 सेमी, 7 सेमी आणि 11 सेमी ही परिमाणे असलेल्या एका घनाभचे एकूण पृष्ठफळ (सेमी2 मध्ये) शोधा.

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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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दिलेले आहे:

घनाभचे एकूण परिमाण = 5 सेमी × 7 सेमी  × 11 सेमी 

वापरलेले सूत्र:

घनाभचे एकूण पृष्ठफळ = 2(lb + bh + hl)

गणना:

घनाभचे एकूण पृष्ठफळ = 2(5 × 7 + 7 × 11 + 11 × 5)

⇒ 2 (35 + 77 + 55)

⇒ 2 × 167 

⇒ 334 सेमी2

∴ अपेक्षित उत्तर 334 सेमीआहे.

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