Pawan Prajapati
Last Activity: 4 Years ago
Since AD is perpendicular bisector of BC.
. . BD = CD and LADB = LADC = 90° ...(i)
Consider triangles ADB and ADC, We have BD = DC
and LADB = LADC
AD = AD
A ADB ::: A ADC
AB = AC.
[From (i)] [Common] [SAS rule]
Therefore, .1ABC is an isosceles triangle with AB = AC.
[CPCT]