Respuesta :

Answer:

The area of all faces of the cuboid is 94 square units

Step-by-step explanation:

Given:

Length = 5

Breadth = 4

Height = 3

To Find :

The area of all faces = ?

Solution:

The area of all the faces  =  surface area of the cuboid

The surface area of the cuboid  =  2(LB + BH + HL)

where

L is the length

B is the breadth

H is the height

Now substituting the values,

The surface area of the cuboid

=> [tex]2(5 \times 4 + 4\times 3 + 3\times 5)[/tex]

=> [tex]2(20 + 12+ 15)[/tex]

=> [tex]2(47)[/tex]

=>94 square units