Question

std 9 maths question pls help ​

Answer 1

Answer:

Step-by-step explanation:

please give the full question.

Answer 2

Answer:

angle ABD = angle A + angle C{ exterior angle property}

110 = angle A + angle C - (1)

angle C + angle ACE = 180{ linear pair}

angle C = 180 - angle ACE

angleC = 180- 150

angle C = 30

Put it in (1)

110 = angle A + 30

110- 30 = angle A

angle A = 80°

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