Question

AN AQUARIUM IS IN THE FORM OF A CUBOID WHOSE EXTERNAL MEASURES ARE 80cm * 30cm* 40cm. the base , side faces and the back face are to be covered with a coloured paper. Find AREA OF THE PAPER NEEDED>>/? PLZ ANWER URGENT...

Answer 1

$\huge \tt \color{red}{Correct \: Question↷}$

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

$\huge \tt \color{green}Solution↷$

• The length of aquarium =l=80cm

• Width of aquarium =b=30cm

• Height of the aquarium= h = 40 cm

• Area of the base = 1 x b = 80 ×30
• = 2400 cm

• Area of the side face=b×h = 30 ×40
• = 1200 cm

• Area of the back face = 1× h = 80×40
• = 3200 cm

• Required area = Area of the base + area of the back face+ (2 x area of a side face)

• = 2400 + 3200 + (2 x 1200) = 8000 cm

Hence the area of the coloured paper required is 8000 cm².