Question

a rectangular box of length 40 metres breadth 25 cm and height 20 cm is to be made of tin what is the tin sheet required if the box has a lid also​

Answer 1

I think the length is 40cm not 40m.

Hope it helps you

Answer 2

The tin sheet required if the box has a lid also​  is 37000 sq.cm.

Step-by-step explanation:

Length of box = 40 m = 400 cm

Breadth of box = 25 cm

Height of box = 20 cm

Total surface area of cuboid box = $2(lb+bh+hl)$

                                                       = $2(400 \times 25 +25 \times 20+20 \times 400)$

                                                       = $37000 cm^2$

Hence The tin sheet required if the box has a lid also​  is 37000 sq.cm.

#Learn more:

A rectangular metal box with a lid has length 30 cm breadth 20 cm height 109 cm how much cloth is required to cover the metal box

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