Question

3. An aquarium is in the form of a cuboid whose external measures are 70 cm x 28 cm *
35 cm. The base, side faces and back face are to be covered with coloured paper. Find
the area of the paper needed.
​

Answer 1

Answer:

Step-by-step explanation:

Given

a cuboid shaped aquarium

Length (l)=70cm

Breadth (b)=28cm

and height (h)=35cm

Now

Area of base =70×28cm  

3

=1960cm  

3

 

Area of side face (70×35)×2 cm  

2

=1960cm  

2

s

Area of back face =70×35cm  

2

=2450cm

Thus the total area =1960+1960+2450=6370cm  

2

 

Hence, area of paper required is 6370cm  

2