Angle G is a circumscribed angle of circle E. Major arc FD measures 280°.

Circle E is shown. Line segments F E and D E are radii. A line is drawn to connect points F and D. Tangents F G and D G intersect at point G outside of the circle. Major arc F D measures 280 degrees.

What is the measure of angle GFD?

40°
50°
80°
90°


right
obtuse
scalene
equilateral