What is the total surface area of the inside and out of a container in the shape of an equilateral triangular prism with a triangular base 5 meters on each side, area of base 10.8 square meters, and height of prism 2.2 meters? round to the nearest tenth

The surface area inside and out of the shape is 109.2 square meters.

To find the surface area, we need to add up all 5 sides. The 2 bases are 10.8. The 3 rectangular sides are 5 x 2.2 = 11.

So we have: 2(10.8) + 3(11) = 54.6.

However, don't forget the problem said inside and out, so we have to multiply 54.6 by 2 to get 109.2 square meters.