Question

the Length breadth and height of a rectangular slab is 25. 25 feet 20.50 feet and 16.75 feet respectively what length of 6 inches white paper will be required to cover the surface of the slab​

Answer 1

Length of the white paper is 5134.26 ft

Step-by-step explanation:

Given that,

the length of the rectangular slab is 25.24 ft,

the breadth of the rectangular slab is 20.50 ft &

the height of the rectangular slab is 16.75 ft

In order to find the length of the white paper, we find the surface area of the rectangular slab.

We know that if l, b and h be the length, breadth and height respectively of any rectangular shape, the surface area of the shape be

= 2 (lb + bh + hl) square units

Then the surface area of the rectangular slab is

= 2 (25.24*20.50 + 20.50*16.75 + 16.75*25.24) ft²

= 2567.13 ft²

Let the length of the white paper is x ft. Then

0.5 * x = 2567.13, since 6 inch = 0.5 ft

or, x = 2567.13/0.5

or, x = 5134.26

∴ the length of the white paper is 5134.26 ft