Question

15. In the given figure, AB || CD and CD || EF. Find the value of x and y.​

Answer 1

Answer:

x= 42

y= 152

Step-by-step explanation:

extend AB to N

AN||CD with BC as transversal so

angle ABC= angle DCB. (alternate interior angles)

70°= x+28

x=70-28

x=42°

extend EF to M

AM||CD with EC as transversal

angle MEC= angle ECD = 28° (alternate interior angles)

now angle MEC + y= 180° (linear pair)

sor 180-angle MEC= y

y= 180-28

y=152°