Question

if the figure AD=6cm,BD=9cm AE=8 cm EC=12cm .If ADE=52 find ABC

Answer 1

Here we take D,E are the points in AB,AC respectively,

AD=6 cm, DB= 9cm

Then AD/DB= 6/9=2/3

AE=8cm, EC=12cm

Then AE/EC=8/12=2/3

AD/DB=AE/EC

∴DE║BC

∠ADE=∠ABC=48 (Corresponding angles are equal)

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