Anonymous

Changes

From Karnataka Open Educational Resources
Line 31: Line 31:  
∠PAQ=2∠OPQ
 
∠PAQ=2∠OPQ
 
=Problem-2=
 
=Problem-2=
 +
In the figure two circles touch each other externally at  P. AB is a direct common tangent to these circles. Prove that<br>a). Tangent at P bisects AB at Q<br> b). ∠APB=90°  (Exescise-15.2, B.3)