Maths-
General
Easy
Question
In figure, sides QP and RQ of 
are produced to points S and T respectively. If 
and 
=?
.
.
Hint:
The correct answer is:
In the question we were given with a triangle consisting of angles some internal and external we were asked to find
∠PQT+∠PQR=180 (Straight angle made on line TR at point Q)
110+∠PQR=180
∠PQR=180−110=70
In △PQR
∠PSR=∠PQR+∠PRQ (Exterior angle of triangle is eqal to sum of two interior angles)
135=70+∠PRQ
∠PRQ=135−70=65
110+∠PQR=180
∠PQR=180−110=70
In △PQR
∠PSR=∠PQR+∠PRQ (Exterior angle of triangle is eqal to sum of two interior angles)
135=70+∠PRQ
∠PRQ=135−70=65
Hence choice A is correct
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