I would try using a table. It might work better.
A.
Faces - 8
Lateral Faces - 6
B.
Vertices - 12
C.
Edges - 18
D.
The base of the prism is a hexagon and the figure as a whole is a hexagonal prism.
<span>The slope of a line is -3
</span><span>perpendicular lines, slope is opposite and reciprocal
so </span><span>the slope of a line that is perpendicular to this line will be 1/3
answer
</span><span>C.1/3</span>