Question

A fish tank is in the form of a cuboid, external measures of that cuboid are 80 cm x 40 cm x 30 cm. The base, side faces and back face are to be covered with a coloured paper. Find the area of the paper needed

Answer 1

Total area of cuboide=`2(80*30+30*40+40*80)`
`13600cm^2`
Area of paper=(Total area)-area of top+area of front.
`=13600-(80*40+80*30)`
`=8000cm^2`.