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There circle C1,C2 and C3 with radii r1,...

There circle `C_1,C_2` and `C_3` with radii `r_1`,`r_2` and `r_3` (where `r_1 तीन वृत्त`C_1,C_2` तथा `C_3` जिनको त्रिज्याएँ `r_1`,`r_2` तथा `r_3` है, (जहाँ `r_1

A

`sqrt((r_1r_3))`

B

`(r_1+r_3)//2`

C

`(2r_1r_2)//(r_1+r_2)`

D

`sqrt((r_1+r_3))`

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CHAMPION PUBLICATION-2017 TIER-II PAPER(9)-EXERCISE
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