Question

the total surface area of a cube is 726 m2 . find its edge ​

Answer 1

Answer:

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Answer 2

Question :

The total surface area of a cube is 726 m2 . find its edge

To find :

Edge of cube

Solution :

Total surface area of cube = 6a²

726 = 6a²

=> a² = 726/6 = 121

=> a = √121 = 11m

Note :

• Total surface area of cube = 6a²
• Lateral surface area of cube = 4a²
• Volume of cube = a³