A student wants to find the surface area of a triangular prism. Its bases are equilateral triangles with side length 7cm and and height 13 cm. find the surface

Question

This is a standard question in my learning standard right now. I am in 7th grade and struggling with this concept. Can someone please solve this and in depth tell me the step by step process please. 

Answer 1

Both the bottom and top bases are equilateral triangles of side length 7 cm.

The formula for the area of one equilateral triangle of side length s is Area = ¼•s²√3

There are three vertical sides of this prism, rectangles perpendicular to the bases; each rectangle has dimensions 7 cm by 13 cm.

 

Now you can find the total surface area, consisting of two equilateral triangles and three rectangles.