Question

surface area of a box lenght is 40 cm breth is 27 cm hieght is 10 cm​

Answer 1

Answer:

Step-by-step explanation:

formula of csa=2pierh

2*3.14*4*27

=678.24

Answer 2

Answer:

Result: The surface area of the box is 3520.

Step-by-step explanation:

Given,

Length(l) = 40cm, breadth(b) = 27cm and height(h) = 10cm

To find, the surface area of a box = ?

We know that,

The surface area of a box = 2(lb+bh+hl)=2(lb+bh+hl)

= 2(40\times 27 + 27 \times 10 + 10 \times 40 )=2(40×27+27×10+10×40)

= 2(1080+270+400) cm^{2}=2(1080+270+400)cm

2

= 2\times 1750 cm^{2}=2×1750cm

2

= 3520cm^2=3520cm

2

Hence, the surface area of a box is 3520cm^2.3520cm

2

.