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ഒരു ക്യൂബിന്റെ (ഘനത്തിന്റെ) വശത്തിന്റെ നീളം 7 സെന്റിമീറ്ററാണ്. ക്യൂബിന്റെ മൊത്തം ഉപരിതല വിസ്തീർണ്ണം എത്രയാണ്?

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DFCCIL Executive (Ops & BD) 28th Sept 2021 Paper (Shift 1)
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  1. 204 cm2
  2. 192 cm2
  3. 225 cm2
  4. 294 cm2

Answer (Detailed Solution Below)

Option 4 : 294 cm2
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Detailed Solution

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നൽകിയിരിക്കുന്നത്:

ക്യൂബിന്റെ വശം = 7 സെ.മീ

ഉപയോഗിച്ച സൂത്രവാക്യം:

ക്യൂബിന്റെ ഉപരിതല വിസ്തീർണ്ണം = 6a2

(ഇവിടെ a = ക്യൂബിന്റെ വശം)

കണക്കുകൂട്ടൽ:

ക്യൂബിന്റെ ഉപരിതല വിസ്തീർണ്ണം A ആണെന്ന് നമുക്ക് അനുമാനിക്കാം

⇒ A = 6 × 72 = 6 × 49 = 294 cm2

∴ ആവശ്യമായ ഫലം 294 cm2 ആയിരിക്കും.

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