Question

Please help it is urgent

Answer 1

Step-by-step explanation:

AB = AD

hence, Angle ABD = x = 42°

in ∆ABD apply angle sum property of triangle

y + 42 + 42 = 180

y = 180 - 84

y = 96°

hence, Angle CBD = Angle CDB = z

apply angle sum property of ∆

52 + z + z = 180

2z + 52 = 180

2z = 180 - 52

2z = 128

z = 128/2 = 64

z = 64.

hope this answer helps you dear...take care!