Question

a cone is sliced by a plane perpendicular to the base throug
what shape does the cross section create?
circle
rectangle
trapezoid
triangle

Explanation:

A cone has a circular base and a pointed apex. When a plane slices the cone perpendicular to the base (and through the apex, as the context implies for a perpendicular slice through the axis), the cross - section will have a shape with a base (the diameter of the circular base of the cone) and two equal sides meeting at the apex. This shape is a triangle. A circle would be the cross - section if the plane is parallel to the base. A rectangle and a trapezoid are not formed by slicing a cone with a plane perpendicular to the base.

Answer:

D. triangle (assuming the options are labeled A - D with D being triangle, if the original options had different labels, adjust the label accordingly. Based on the given options, the correct one is the triangle option)