Answer:
Step-by-step explanation:
Angle G is an inscribed angle. The rule is that the measure of an inscribed angle is half the measure of the arc it intercepts. Angle G intercepts arc FD. That means that we need to find the measure of arc FD. The measure all the way around the outside of a circle is 360 degrees. Arc FG is 70, arc GD is 120, so
Arc FD = 360 - 70 - 120 and
Arc FD = 170
That means that angle G is half of 170, which is 85
