Question

the length of a cuboid is twice its breadth .The breath is twice its height. find the ratio of the lateral surface to total surface area of its height is 2cm ​

Answer 1

2x =b hxb ha so the le night =500 and breath =10099

Answer 2

The required ratio would be 3:7.

Step-by-step explanation:

Since we have given that

Let the height of cuboid be 'x'.

Let the breadth of cuboid be '2x'.

Let the height of cuboid be '4x'.

So, Lateral surface area would be

$2(l+b)\times h\\\\=2(4x+2x)\times x\\\\=2\times 6x\times x\\\\=12x^2$

Total surface area would be

$2(lb+bh+lh)\\\\=2(4x\times 2x+2x\times x+x\times 4x)\\\\=2(8x^2+2x^2+4x^2)\\\\=2\times 14x^2\\\\=28x^2$

Ratio of lateral surface area : total surface area would be

$12x^2:28x^2\\\\=3:7$

Hence, the required ratio would be 3:7.

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