Question

Please answer fast
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Answer 1

if we draw a straight line from B and name given BG,
then, if AB ||DE then,.<ABE= < DEG .....1 no equation

if , BC || EF. then, < EBC = <GEF....2 no equation
adding 1 + 2 no equation..
<ABE + <EBC= <DEG+ <GEF
or, <ABC= <DEF (proved )



hope it helps you..

thank you

Answer 2

given line ab || de then angle abc and angle dec are co - interior angles..
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