CBSE Guess > Papers > Question Papers > Class X > 2009 > Mathematics > Mathematics
Sol. 
PQR and PST
Q. 7. In Fig. 3, PA is a tangent from an external point P to a circle with centre O. If 
POB = 115°, then find APO.
Ans. APO = 25°
Sol.
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CBSE 2009 Question Papers Class X
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