Answer :

HOP + 70° = 180° [Linear pair]


HOP = 180°-70°


HOP = 110°


HOP = x = 110° [In a parallelogram opposite angles are equal]


x + z + 40° = 180° [In a parallelogram sum of the adjacent angles is equal to 180°]


110° + z + 40° = 180°


z = 180° - 150°


z = 30°


z +y = 70°


y + 30° = 70°


y = 70°- 30°


y = 40°


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