It All Came From Pencils

Geometry Level 2

Hazri aligned two identical pencils in such a way that the pencil tips are stuck together as shown in the 2D (flat) diagram above.

If the angles formed by the pencil tips in the 2D diagram are both $40 ^ \circ$ , then what is the value of $x$ in degrees?

(Assume the pencils have a rectangular body and have their tips resembling isosceles triangles)