Question

find x . write the answer step by step ​

Answer 1

Answer:

sum of internal angles of a triangle = 180°

20+130+ angle ACB = 180°

150+ angle ACB = 180°

angle ACB = 180 - 150 = 30°

BCD is a straight line = 180°

ie, 30°+ angle ACD = 180°

ACD or x = 180° - 30° = 150°

therefore, x = 150°

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