Question

please answer step wise​

Answer 1

Answer:

hope this will help you

Step-by-step explanation:

Given:BAD=78°

To find:1.x=?,

2.y=?

Solution:- BAD+ABC=180°

78°+ABC=180°

ABC=180°-78°

ABC=102°

ABC≈DCF--(congruent angles are equal)

therefore, DCF=102°

therefore, x=102°

DAB≈EDC--(congruent angles are equal)

therefore,EDC=78°

EDC+DEF=180°

78°+DEF=180°

therefore,DEF=180°-78°

therefore,DEF=y=102°

x=102°,y=102°