Q. 64.9( 8 Votes )
In the following
Answer :
In parallelogram RISK
∠SKR + ∠ISK = 180° [In a parallelogram sum of the adjacent angles is equal to 180°]
120° + ∠ISK = 180°
∠ISK = 180° - 120°
∠z = 60°
In parallelogram CLUE
∠UEC = ∠z = 70° [In a parallelogram opposite angles are equal]
In ΔEOS
70° + ∠x + 60° = 180° [Sum of angles of a triangles is 180°]
∠x = 180° - 130°
∠x = 50°
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