Find the surface area of a triangular prism shown below.

Step-by-step explanation:

Multiply the numbers on each face 5×7, 6×7, 6×4÷2 (for the triangle) remember that there are 2 of each of the faces so the answer to 5×7 multiply that by 2 to get both faces

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.