Question

if AB parallel EF and EF parallel CD, then find value of x.
​

Answer 1

130

Step-by-step explanation:

therefore 180 - 360

455555

Answer 2

Answer:

x = 40° and y = 30°

Step-by-step explanation:

Given :- AB || EF and EF || CD.

To Find :- Find the value of x.

Solution :-

Since, AB || EF and EF || CD

∴ AB || CD

angle BCD = x + y

angle ABC = x + y = 70° [Alternate angle]

angle CEF + angle ECD = 180° [ co-interior angle]

⇒ 150° + y = 180°

⇒ y = 180° - 150°

⇒ y = 30°

So, x + y = 70°

⇒ x = 70° - y

⇒ x = 70° - 30°

⇒ x = 40°

Therefore, the value of x = 40° and y = 30° .

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