Question

ABCD is a square in which line segment CX cuts ab at x and the diagonal BD at O such that angle COD=80degree and angle oxa =x degree.find the value of x.

Answer 1

∠COD= 80
∠BOX= 80
as they are vertically opposite angles

diagonal of bisectors are at angle bisectors 
∠OBX= 45
exterior angle= ∠OXA

exterior angle = sum of interior angle
∠OXA= 80 + 45
= 125

Answer 2

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