प्रश्नावली-15.1
एक घन के संपूर्ण पृष्ठ का क्षेत्रफल 1350 वर्ग मीटर है, तो इसका आयतन ज्ञात कीजिए?
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Answer: here
Explanation: Given total surface area of cube =1350sqm
Let the side of the cube is s meter
Then the surface area of cube =6s
2
=1350
⇒s
2
=225
⇒s=15 m
Then side is 15 m
Then volume of cube =s
3
=(15)
3
=3375m
3
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