In the given figure O is the centre of the circle. PT is the tangent drawn from
the point P to the circle and PAB passes through the centre O of the circle.
cm
cm
if PT 8cm and PA = 4 cm then find the radius of the circle.
Answers
Answered by
1
Answer:
let r be the radius of the circle
we have that PT =6cm and PA =3 cm then by Pythagoras theorems
=(3+π) square=6 square +r square
=9 + r +6r =36 +r square
=6r =27
=r =9/2=4.5
Attachments:
Similar questions