Changes
From Karnataka Open Educational Resources
198 bytes added
, 15:14, 12 August 2014
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∠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)