In the given figure PA = 4 cm and PB = 9 cm, the value of PT is equal to

5 cm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

6 cm

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

7 cm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

4 cm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B 6 cm
If a secant AB and tangent at the point T of a circle intersect at a point P outside the circle then $P A \times P B = P T^{2}$
Substituting the value we get
$4 \times 9 = P T^{2}$
$P T^{2} = 36$
$P T = 6 c m$

Suggest Corrections

Similar questions

In the given figure, PT is tangent to the circle at T. If PA = 4 cm and AB = 5 cm, find PT. AB is equal to diameter.

Join BYJU'S Learning Program