Question

How to solve questions 30

Answer 1

AB is parallel to DC
CBD=BDA(alternate angle)
Then 72°=72°
y=72°
x=4/3y
x=4/3*72
x=96°

Angle BAD=180-(72+96)
=180-168
=12°

Angle ABC=x+y
=72+96
=168°

Angle ABD=BDC
96°=96°

ANGLE BCD=180-(72+96)
=180-168
=12°