Total surface area of cube = 864 sq.cm. Find it's volume ?
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Answer:
1728
Step-by-step explanation:
Given: Total surface area of cube = 864 sq. cm
To find: Volume of cube i.
Total surface area of cube = 6l2
∴ 864 = 6l2
∴ l2 = 6–√8646864
∴ l2 = 144
∴ l = √144 … [Taking square root on both sides] = 12 cm ii.
Volume of cube = l2 = 123 = 1728 cubic cm.
∴ The volume of cube is 1728 cubic cm.
Happy to help . Good luck
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