Question

please help me in this sum

Answer 1

Your Answer :-

We know that the Corresponding angles are equal so ,

angle AED = angle ACB .

Angle AED = 120.

then , through angle sum property ,

ADE + AED + DAE = 180 .

DAE = 180 - 155.

DAE = 25 .

angle ABC = angle ADE .

angle ABC=  35 .

# BE Brainly

Answer 2

we will find Angle ABCby linear pair with angleADE


angle ADE+EDB=180° (LINEAR PAIR)
ANGLE EDB=180-35=145°
EDB=145°
ANGLE ECB=ANGLE AED
AED=120
35+120+DAE=180 (ANGLE SUM PROP.)
DAE=25°
AngleABC+BCA+CAB=180(ASP).
ABC+120+25=180
ABC=180-145
ABC=35°