Question

A closed cubical box with each edge 4 m is to be covered from all sides, using paper. Find the length of paper needed if the breadth of paper is 8 ​

Answer 1

Answer:

Here you go ................

Step-by-step explanation:

area of paper needed = surface area of the cube

Surface area of cube = 6a²{a is the length of the side of cube = 4m}

= 6(4)² = 6(16) = 96m²

Let the length of paper = l

Given that breadth of the paper = 8m

Area of the paper = lxb

lxb = 96

l(8) = 96

l = 12m

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