JEE MATHEMATICS MCQ: SYSTEM OF CIRCLES

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Application +4 | -1

Line

L

touches circles

C_1, C

and

C_2

having radii

r_1, r, r_2

respectively. These circle pairwise touch each-other externally. If

r_1=36

and

r_2=900

then find the value of

\sqrt{r}

View answer and explanation

Correct option: A

Option A (5) is correct because the radius of the middle circle is 25, and the square root of 25 is 5.

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