ln ΔPQR, O is the incentre and ∠P = 42°. Then what is measure of ∠QOR?
A. 138°
B. 132°
C. 111°
D. 121°
Answer: Option C
Solution (By Examveda Team)
$$\eqalign{ & \angle {\text{QOR}} = {90^ \circ } \times \frac{{\angle {\text{P}}}}{2} \cr & = {90^ \circ } + \frac{{{{42}^ \circ }}}{2} \cr & = {111^ \circ } \cr} $$
This Question Belongs to Arithmetic Ability >> Geometry
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