Question

yrr.. koi janta h to ans de do..
thoda sa confusion h bas... ​

Answer 1

Data :- E is a mid point on side BC produced of an isosceles triangle ABC with AB = AC. If AD BC and EF AC

To prove :- ∆ABC ~ ∆ ECF

Proof :- In ∆ ABC , AB = Ax ( given )

angleB = angleC ( opposite angle of

equal sides) (1)

In ∆ ABD and ∆ECF

angleABD = angleECF ( from1)

angleADB = anglrEFC ( right angle)

∆ ABD ~ ∆ ECF (AA)

Hence, provide .