Question

in the given figure, AC parallel CE and angle A: angle B:angleC=3:2:1. find the value of angleECD​

Answer 1

Answer:

In the given triangle, the angles are in the ratio 3: 2: 1.

Let the angles of the triangle be 3x, 2x and x.

We know that sum of angles in a triangle is 180°

3x + 2x + x = 180°

6x = 180°

x = 30°

Also, ∠ACB + ∠ACE + ∠ECD = 180° x + 90° + ∠ECD = 180°

(∠ACE = 90°) We know that x = 30° Therefore ∠ECD = 60°

Answer 2

Step-by-step explanation:

See this attachment ..

Hope its help..