Question

* Find the surface area of a cuboid of dimensions 26 cms ; 20 cms and 12 cms.

Answer 1

Area of cuboid = 2(lb+bh+hl)
=2(26*20+20*12+12*26)
=2(1072)
= 2144 cm^2

Answer 2

Answer:

The surface area of a cuboid is 2144 cm³

Step-by-step explanation:

• The surface area of a cuboid is defined as the sum of all the area of all the face of a cuboid
• A cuboid has 6 faces and opposite faces have identical areas
• Hence, the surface area of a cuboid is given by 2 ( lb + bh + hl)

        where b is base

                    h is height

                    l is length

• Here in this question, we are provided with the dimensions of the cuboid i.e. 26 cm, 20cm, 12cm

Calculations :

Surface area of a cuboid = 2 ( lb + bh + hl )

Substitute the given values in fromula

we get,

Surface area of a cuboid = 2 ( 26 x 20 + 26 x 12 +  20 x 12 )

Surface area of a cuboid = 2 ( 520 + 312 +  240 )

Surface area of a cuboid = 2 ( 1072 )

Surface area of a cuboid = 2144 cm³

Therefore the required surface area of the given cuboid is 2144 cm³