Describe the two-dimensional figure that results from making a perpendicular slice to a right rectangular pyramid that goes from base through the apex.

a. hexagon
b. triangle
c. trapeziod
d. square

b. triangle

When a perpendicular slice is made through a right rectangular pyramid from the base through the apex, the resulting two-dimensional figure is a triangle. This is because the perpendicular slice will intersect all four sides of the rectangular base, forming a triangular shape when viewed from above.