640Fig. 25 – InterviewSolution

1.

640Fig. 25

Answer»

angle CAD + angle CDA + 64° = 180°

2 angle CDA = 180° - 64° = 116°

angle CDA= 116°/2 = 58°

So, angle ADB = 180° - 58° = 122°

angle ADB + x + x = 180°

2x = 180° - 122°

x = 58°/2

x = 29°

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