Question

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

Answer 1

Answer: 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.