एक घन का आयतन 729 घन सेंटीमीटर है इसका पृष्ठ क्षेत्रफल ज्ञात करें
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Step-by-step explanation:
volume of cube = a ^3
given a^3=729
a=9cm
curved surface area of cube is 6 a^2
6×(9)×(9)= 486cm^2
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