Question

plzz solb my problen soonly will you do this for your self

Answer 1

Hey bro !!

Here is your answer.,,

Length of aquarium ( L ) = 80cm
Breadth of aquarium ( b ) = 30cm
Height of aquarium ( h ) = 40cm

As here given that we have to find area of base, side face and backface.

so,

Area of cuboid ( open lid ) = 2h ( L + b ) + Lb - Area of front side ( Lh )

= 2(40) ( 80 + 30 ) + (80×30) - (80 × 40)
= 80(110) + 2400 - 3200
= 8800 + 2400 - 3200
= 11200 - 3200
= 8000

Hence , your answer is ( b ) none of them.

Hope it helps you..

Thanks. ^-^