In 
ABC the angle bisectors of 
and
meet at O. If 
=70°,Find 
.
125°
Given, bisector of 
and 
meet at O.
If OB and OC are the bisector of 
and 
meet at point O .
Then,
= 90°+ 
⇒
= 90°+ 
70°
⇒
= 125°
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+
+
+
+
+
=360°
ABC have been produced to D and E respectively. The bisectors of 
and 
meet at O. If 
=40° find 
.
:
:
=3:2:1 and AC 
CD. Find the measure of
.