find the value of the unknown angle X and y in the following figure number c)∆ABCD AB||AC given angle A=Y B=50
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Step-by-step explanation:
The interior angle of angle a =180°-110°=70°
the interior angle of angle b=180°-120°=60°
the sum of the angles of a triangle is 180°
70°+60°+x°=180°
130°+x°=180°
x°=50°
therefore x =50°.
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