Question

solve this question please it's urgent​

Answer 1

Answer:

your answer is here ......

Answer 2

Answer:

60

Step-by-step explanation:

Angle A:Angle B:Angle C=3:2:1

Let angle A=3x

Let angle B=2x

Let angle C=x

3x+2x+x=180

6x=180

$x = \frac{180}{6} \\ \\ x = 30$

Angle A=3×30

=90

Angle B=2×30

=60

Angle C=30

Angle ACB+Angle ACD+Angle ECD=180 linear pair

30+90+Angle ECD=180

Angle ECD=180-120

Angle ECD=60