Question

A fish tank is in the form of cuboid, external measures of that cuboid are 80cm40cm30 cm the base side faces and back faces are to be covered with a colour paper find the area of the paper needed​

Answer 1

Step-by-step explanation:

The tank is in the shape of a cuboid.

To find the area of the paper required, we need to calculate the surface area of the cuboidal tank and subtract the area of the top side and the front side.

Total surface area of a cuboid of length l, breadth b and height h =2(l×b+b×h+l×h)

length =80 cm,breadth =40 cm and height =30 cm =2(80×40+40×30+30×80)=2(3200+1200+2400)=13600cm

2

Area of the top side =80×40=3200cm

2

Area of the front side =80×30=2400cm

2

Hence. area of the paper required =13600−3200−2400=8000cm

2