For triangular prism, it seems that the data shown is insufficient. The length is missing or it may be the h, the sides are also missing where we don't know if it is a scalene, isosceles, or equilateral triangle. I hope that the solution will satisfy your inquiry.
And maybe you can ask your teacher to supplement the missing data, or ask what type of triangle is it?
Answers & Comments
For triangular prism, it seems that the data shown is insufficient. The length is missing or it may be the h, the sides are also missing where we don't know if it is a scalene, isosceles, or equilateral triangle. I hope that the solution will satisfy your inquiry.
And maybe you can ask your teacher to supplement the missing data, or ask what type of triangle is it?