Question

find x and angle d ​

Answer 1

Answer:

x=45 and angle d = 75

Step-by-step explanation:

x+x+30=120

2x+30=120

2x= 120-30

2x= 90

x=45

x+30= 75

hope it helps you

Answer 2

Step-by-step explanation:

ACB+ACD=180°

120°+ACD=180°

ACD=180°-120°

ACD=60°

x+(x+30°)+ACD=180°

x+x+30°+60°=180°

2x+90°=180°

2x=180°-90°

2x=90°

x=90°/2

x=45°

x+30°=45°+30°

=75°