In the give figure, PT is a common tangent to three circles at points A, B and C respectively. The radius of the small, medium and large circles is 4 cm, 6 cm and 9 cm respectively. O1, O2 and O3 are the centre of the three circles. What is the value (in cm) of PC?

In the give figure, PT is a common tangent to three circles at points

1.	In the give figure, PT is a common tangent to three circles at points A, B and C respectively. The radius of the small, medium and large circles is 4 cm, 6 cm and 9 cm respectively. O1, O2 and O3 are the centre of the three circles. What is the value (in cm) of PC?
A.	18√6
B.	9√6
C.	24√6
D.	15√6
Answer» B. 9√6

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In the give figure, PT is a common tangent to three circles at points A, B and C respectively. The radius of the small, medium and large circles is 4 cm, 6 cm and 9 cm respectively. O1, O2 and O3 are the centre of the three circles. What is the value (in cm) of PC?

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