Answers

2016-02-27T22:00:00+05:30
In ABD and CBD:-
AD=DC (GIVEN)
ADB=BDC (GIVEN)
DB=DB(COMMON)
therefore ABD=CBD (SAS)
IF ABD=48°
CBD=180°-48°
=132°
0
2016-02-28T07:30:37+05:30
In ΔABD and ΔCBD

AD = DC (GIVEN)

ADB = BDC (GIVEN)

DB = DB (COMMON)

BY SAS similarity 

∴ΔABD≈ ΔCBD

if ABD = 48

CBD = 180-48
  
         = 132.

0