An open rectangular tank is 3.5 m long 2 m wide and 2.5 m high Maria painted the outside faces of the tank how many square meters did she paint?

Answer 1

First, we need to calculate the surface area of the tank.

The tank has 6 faces: 2 long faces, 2 short faces, and 2 top and bottom faces.

The surface area of each long face = length * height = 3.5m * 2.5m = 8.75 square meters

The surface area of each short face = width * height = 2m * 2.5m = 5 square meters

The surface area of each top and bottom face = length * width = 3.5m * 2m = 7 square meters

Total surface area of the tank = (2 * 8.75) + (2 * 5) + (2 * 7) = 17.5 + 10 + 14 = 41.5 square meters

Therefore, Maria painted a total of 41.5 square meters of the tank's outside faces.