Question

find the surface area of a box open from the top whose shape is like a cube of the edge 30cm.​

Answer 1

Answer:

3600cm²

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

Total surface area of a box is 6a^2 but as it the box is opened from top so area of the top of the box would be removed that is a square and hence has an area of a^2

So the area of the box = 6a^2-a^2

=5a^2

=5(30)^2

=4500cm^2

Therefore, the surface area of the required box is 4500cm^2