Question

if you answer is right..i will Mark as brainlist

Answer 1

Heya user,

--> By Secant-Tangent theorem,
-----> Tangent² = 4cm ( inner chord)
==> 6² = 4(inner chord)
==> [ inner chord ] = 9cm

Now, in second figure:->
----> Tangent² = 5cm ( inner chord )
==> Tangent² = 5 * 9
==> Tangent = 3√5 cm <--- Ans....