Question

Please tell solution fast and step wise step and tell corect Spammers will be reported​

Answer 1

Answer:

angle adc= 180-100 ( linear pair)

= 80°

dac+ 80°+70°=180° (asp)

dac= 30°

as angle b is twice angle dac

then b=60°

dab+100°+ 60°=180° (asp)

dab = 20°

{asp= angle sum property}

Answer 2

Step-by-step explanation:

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