Question

answer this question​

Answer 1

Answer:

‹DAC = 90°

dac=dab+bac

90°=30+x

x=90-30 = 60°

...BAC=CAB=ACB

Dbc=180°

DBC= abc+abd

180=60+x

x=180-60

abd=120

BAD+ABD+ADB=180

30+120+x=180

150+x=180

180-150=x

x=30°