Answer:
The options doesn't match or the question is wrong but the answer is (1,2.5)
Step-by-step explanation:

Answer:
-6
Step-by-step explanation:
D+100+40=180
d=180-100-40=40 (sum of all angles)
e= 100+40= 140 (exterior angle)
180-140=40
C+50+40=180
C=180-50-40= 90 (right angle)
A=50
B=180-90-50= 40