Question

You’re repairing a large rectangular aquarium. The final step is to cover the glass with a protective film. The front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. How many square meters of protective film do you need?

Answer 1

28 square metres

Explanation:

Calculate the total surface area of the glass covered part of the rectangular aquarium

Surface area = 2(4 × 2) + 2(3 × 2)

= 16 + 12

Protective film needed = 28 square metres

Answer 2

Answer: Area of protective film would be 28 m².

Explanation:

Since we have given that

Dimensions of front and back of the aquarium is given by

4 meters by 2 meters

Dimensions of sides of the aquarium is given by

3 meters by 2 meters.

So, Area of protective film he needed is given by

`2(4* 2)+2(3* 2)\\\\=2* 8+2* 6\\\\=16+12\\\\=28\ m^2`

Hence, Area of protective film would be 28 m².