Question

The dimensions of a cuboid are 8 metre into 6 metre into 4 metre. Its lateral surface area is

Answer 1

$\huge\underline\mathcal{Answer:-}$

Given-

Length=8 m

Breadth=6 m

Height=4 m

To find- Lateral surface area of cuboid

Solution-

Lateral surface area of cuboid=2(l+b)h

=2(8+6)4

=2×14×4

=112 m^2

Answer 2

Step-by-step explanation:

If you already know the concept , jump to solution

First of all,

BASIC FORMULA TO BE REMEMBERED:--

LATERAL SURFACE AREA OF A CUBOID

= 2 (l + b) × h

DERIVATION(in case you forget the formula in exam):--

Imagine the cuboid in your mind

LATERAL means Sideways

That clearly suggests that

LATERAL SURFACE AREA MEANS AREA OF THE FOUR SIDE SURFACES

= lh + bh + lh + bh

= 2lh + 2bh

= 2 ( l + b ) × h square units

SOLUTION:-

Length:- 8 m

Breadth:- 6 m

Height:- 4 m

Using the formula:-

2 ( 8 m+ 6 m)×4 m

= 2 × 14 m × 4 m

= 112 m^2

Hope you understood