From the picture, the measure of ∠CGE is 110° - 20° = 90°, then ∠CGE is a right angle and has a measure of 90°
The measure of ∠BGD is 160° - 67° = 73°, then ∠BGD is an acute angle and has a measure of 73°
The measure of ∠CGB is 160°- 110° = 50°, then ∠CGB is an acute angle and has a measure of 50°