Question

Could someone solve this? How to find the unknown angles?​

Answer 1

Answer:

angle CED = 180° - (42° + 100° ) = 38°

Let e be x

f be y

angle. e ,

38° + e + e = 180°

2e = 180° - 38°

e = 142° /2 = 71°

f = 180° -(50° + 101° )

f = 29°

Answer 2

Step-by-step explanation:

in ∆dce

angleC+angleD+angleDEC=180

42+100+angleDEC=180

142+angleE=180

=angleE=180-142

=angleE=38

angleDEC+angleBEC=180(linear pair)

38+angleBEC=180

angleBEC=142

ef bisect angleE

angleBEf=angleDEf

142/2= 71