Canada Math Contest #2 - Problem 2

Two identical equilateral triangles perfectly overlap. One of them is rotated 180^\circ, creating a 6-point star. Similarly, two regular pentagons perfectly overlap, one of which is rotated 180^\circ, creating a 10-point star. What is the difference, in degrees, between the largest interior angle of the 6-point star and the smallest interior angle of the 10-point star?