Two tangents TP and TQ are drawn to a circle with centre O from an external point T. If TP = 7 cm, find the length of TQ.

7 cm 10.5 cm 3.5 cm 14 cm

7 cm

Tangents of a circle meet at same point are of equal length. ⇒ TP = TQ ⇒ TQ = 7 cm   { Becuase TP = 7 cm }