Question

Q19 someone pls help !!!

Answer 1

baf=dfe=80
dfe+efc=180
efc=100
efe+fec+fce=180
fce=180-145
fce=35

Answer 2

Here we can clearly see that...

Angle DFA=angle EFC... (V. O. A.)

ANGLE A + angle DFA=180°....(cointerior angles..)
So angle DFA=100°..hence angle EFC=100°

angle C+ angle E+ angle F=180° (ASPOT)

So angle FCE=180-45-100

So angle

FCE=35°


Hope it helps...