Question

explain with proper steps

Answer 1

Answer:

155°

Step-by-step explanation:

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Answer 2

Answer:

30°+50°+55°+angle D =360°

as the sum of all angles of a quadrilateral is 360°

angle D= 225

angle D + x° = 360°

supplementary angles

x°=360°-225°

x°=135°

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