Question

For a school exhibition the school ordered to prepare some cuboidal boxes of
dimensions 50cm X 40cm X 20cm by using a cardboard. Find the total area of
cardboard is needed to prepare 50 boxes like.​

Answer 1

Answer:

$38000 {cm}^{2}$

Step-by-step explanation:

Area of 1 box = 2(lb+bh+hl)

=2(50 cm × 40 cm + 40 cm × 20 cm + 20 cm × 50 cm)

$= \: 2(2000 {cm}^{2} + 800 {cm}^{2} + 1000 {cm}^{2} )$

$= 2 \times 3800 {cm}^{2} \\ = 7600 {cm}^{2} \: \: \: \: \: \: \:$

Area of 50 such boxes =7600 cm2 ×50

= 38000 cm^2