please solve the problem
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Answer:
x = 20°
Explanation:
in triangle DCB
D= 4x (alternate angle)
C=2x (given)
B=3x (given)
The sum of all angles of a triangle is 180°
therefore, 4x+2x+3x = 180°
so, 9x= 180°
x = 180 divided by 9
so x is 20°
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