Question

a paper box without a lead is 25/100 m long , 16/100 m wide and 5/100m deep how many square CM of paper have been used to make the box​

Answer 1

Answer:

Length of SQ. box= 25 cm

Width= 16 cm

Depth= 5 cm

Area of rectangle 1= 25×5

= 125 cm2

Area of rectangle 2= 25×5

=125 cm2

Area of rectangle 3= 16×5

=80 cm2

Area of rectangle 4= 16×5

=80 cm2

Area of rectangle 5= 16×25

=400 cm2

Total area of paper box= 400+80+80+125+125 = 810 cm2