Answer:
∠CGE is a right angle and has a measure of 90.
∠BGD is an obtuse angle and has a measure of 93.
∠CGB is an acute angle and has a measure of 50.
Acute angles are angles that measure less than 90.
Right angles are angles that measure exactly 90.
Obtuse angles are angles that measure greater than 90.
∠CGE
As we can see, ray C is at 70, while ray E is at 160.
160 - 70 = 90, since it measures 90, it is a right angle.
∠BGD
Ray B is at 20 while Ray D is at 113
113 - 20 = 93, since it measures greater than 90, it is an obtuse angle.
∠CGB
Ray C is at 70, Ray B is at 20
70 - 20 = 50, since it measures less than 90, it is an acute angle.