Question

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Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Answer:

correct ans is 30 degree

Step-by-step explanation:

now in triangle ABC

side AB=side AC

so by isoceles traingle theorem

angle ABC=angle ACB. (eq 1)

anglr ABC=30 (given)

so angle ACB=30. (by eq 1)

now by exterior angle theorem

angle ACB + angle ACD= 180

so angle ACD=180-30=150. (eq 2)

now in triangle ACD

angle ACD +angle CAD + angle ADC=180

150 + angle CAD + angle ADC= 180

so

angle CAD + angle ADC=180-150=30 degree