In Figure 1, is a point on
produced of an isosceles
, with side
. If
and
prove that
.
Given - is isosceles
where
and
To prove -
Proof - As hence
(angles opp to equal sides of an isocelus triangle are equal)
In and
____(i)
_____(ii)
From (i) and (ii) we can say by AA similarity,
Hence proved