Question

I need this answer pls help friends ​

Answer 1

Answer:

sorry don't know

Step-by-step explanation:

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Answer 2

Answer:

angle cab+angle bad=180(linear pair)

100+angle bad=180

angle bad=80

in triangle bad

angle b+angle a+angle d=180(angle sum property)

angle abd+70+80=180

angle abd=180-150=30

in triangle abc

angle abc+angle bca+angle cab=180

angle abc+3(angle abc)+angle cab=180

4(angle abc)=180-100

angle abc=80/4=20

Step-by-step explanation:

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