Right angle = Is a 90° degrees angle
Obtuse angle= is more than 90° but less than 180°
Acute angle=less than 90°
So:
Angle CGE starts at 70° (C.top row) and ends at E 160°.
To find the measure:
160-70 = 90°
SO,
Angle BGD:
B =20°
D≅ 113° (picture isn't clear enough)
BGD = 113-20 =93
Obtuse angle (more than 90°)
Angle CGB
C = 70°
B =20°
CGB = 70-20 = 50°
Acute angle (less than 90°)