On a plane, two equilateral triangles (of side length 1) share a side, and a circle is drawn with the common side as a diameter. Find the area of the set of all points that lie inside exactly one of these shapes.
On a plane, two equilateral triangles (of side length 1) share a side, and a circle is drawn with the common side as a diameter. Find the area of the set of all points that lie inside exactly one of these shapes.