In the given figures the side OA and CA of triangle
ABC have been produced to D and E such that BA, AD and CA=AE prove that ED||DC
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Step-by-step explanation:
1st we congruent the triangle AED & ABC by S.A.S congruence.
2nd then show angle C is equal to angle E by ( C.P.C.T ).
In parallel lines adjacent angle are equal
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