Question
The total surface area of a cube having side 86 cm is:
This question was previously asked in
RRB NTPC 2025 Graduate CBT 2 Question Paper PDF (10-Jul-2026) (Shift 1)
The correct answer is
44,376 cm2
The total surface area of a cube of side \(a\) is \(6a^2\).
Here \(a=86\) cm, so \(a^2=86^2=7396\).
Total surface area \(=6\times7396=44376\).
Hence, the total surface area is 44,376 cm2.
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