The length of the aquarium is 800 mm. Height and width are half the length. Find: 1.The area of the front and rear walls?

The length of the aquarium is 800 mm. Height and width are half the length. Find: 1.The area of the front and rear walls? 2. Is the area of each side wall? 3. The area of the bottom? 4.Area of the entire aquarium?

First, let’s find the height and width of the aquarium.
800: 2 = 400 mm.
The area of the front and back walls will be the product of length and height.
S1 = 800 * 400 = 320,000 mm ^ 2.
Side wall area – product of width and height:
S2 = 400 * 400 = 160,000 mm ^ 2
Bottom area – product of length by width:
S3 = 800 * 400 = 320,000 mm ^ 2.
The total area of the aquarium will be the result of the addition of the areas of the front and rear, as well as 2 side walls and the bottom area:
S = 2 * S1 + 2 * S2 + S3 = 640,000 + 320,000 + 320,000 = 1280000 mm ^ 2.