#NEED HELP WITH GEOMETRY
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m angle bad = m angle ead(cuz its given in the question)
=m angle1 + m angle2= m angle3 + m angle4(according to figure)
implies m angle1 = m angle3 + m angle4 - m angle2
this means m angle1 =m angle3(m angle2 = m angle4 according to question)
Subtraction postulate
You just need to write one statement which is 3 = 1