Question

geeta has an old wooden box and she wanted to decorate the box with coloure paper if the box has length breath height as 80cm 40cm and 20 cm then how many square sheets of paper side 40 cm would she require​

Answer 1

Answer:

your answer is in the picture

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Length= 80cm

Breath=40cm

Height=20cm

outer surface area of the wooden box=2(lb+bh+hl)

=2[80(40)+40(20)+80(20)

=2(3200+800+1600)

=2(5600)

=11200cm^2

surface area of box=11200 cm^2

area of 1 sheet=area of square=side×side

=40cm×40cm=1600 cm^2

number of square sheets required=surface area of box/ area of 1 square sheet

=11200cm^2/1600cm^2=7

hence she would require 7 sheets.

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