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Two circles of radii 20 cm and 5 cm resp...

Two circles of radii 20 cm and 5 cm respectively, touch each other externally at the point P, AB is the direct common tangent of these two circles of centres R and S, respectively. The length of AB is equal to:

A

10cm

B

5cm

C

15cm

D

20cm

Text Solution

Verified by Experts

The correct Answer is:
D
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