Or
Prove that the lengths of tangents drawn from an external point to acircle are equal. Making use of the above, prove the following.
From an external point P, two tangents PA and PB are drawn to a circle with centre O as shown in Figure 5. Show that OP is the perpendicular bisector of AB.
Sol.
Part I. See Theorem 6, Page (xxxii).
Part II
.
Proof.
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