in the figure AD= 6 cm, DB= 9 cm, AE= 8 cm and EC = 12 cm and angle ADE = 48°. Find angle ABC
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AD/DB = AE/EC
6/9=8/12
2/3=2/3
DE||BC (Converse of BPT)
<ADE=<ABC=48 (Corresponding angles are equal)
Hope it helps and if there is any doubt then ask me in comments.
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