Question

If anyone can help please tell the correct answer with explanation​

Answer 1

Answer:

Given

Angle A = 30°

Angle B = 40°

Let's angle ACB = y°

Angle A + Angle B + Angle ACB = 180° (Sum of angles of a ∆le)

=> 30°+40°+y° = 180°

=> y° = 180° - 70°

=> Angle ACB = y° = 70°

Then, Angle ECD = 180°-y° (Linear pair)

=> Angle ECD = 180°-70°

=> Angle ECD = 110°

Now, x = Angle ECD + Angle D (Sum of opposite interior angles = exterior angle)

=> 70°+20° = x

=> x = 90° .....

Angle x = 90°......

Step-by-step explanation:

Hope it helps you....