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 40 ^ \circ , then what is the value of xx in degrees?

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

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