1.

In figure if AD-6cm, DB-9cm, AB-8cm and EC = 12cm and <ADE-480. Find. ABC480

Answer»

if AD/BD = AE/ECthen, Line DE||BClet's check, AD/BD=6/9=2/3& AE/EC=8/12=2/3by above, AD/BD=AE/ECso, DE||BC<B = <Dso, <B = <48° {Answer}



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