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The length of common tangent to the two circles is 5 and a common external tangent is 15 then the product of radii of two circle is ?

The length of common tangent to the two circles is 5 and a common external tangent is 15 then the product of radii of two circle is ?

Grade:11

1 Answers

Nishant Vora IIT Patna
askIITians Faculty 2467 Points
4 years ago
Hi Please go through this similiar question to understand the concept

http://www.askiitians.com/forums/Algebra/find-product-of-radii-of-two-circles-whose-length_74901.htm

Thanks

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