If two circles of radii (r\_1) and (r\_2) touch externally t... | Mathematics | SolveeIt | Solveeit

Today, August 18

Question

If two circles of radii $r_1$ and $r_2$ touch externally then length of a common tangent is

A

$\sqrt{r_1^2 + r_2^2}$

B

$\sqrt{r_2 r_2}$

C

$2 \sqrt{r_2 r_2}$

D

$(\sqrt{r_2 } + \sqrt{r_2})^2$

Answer

$2 \sqrt{r_2 r_2}$

Explanation

Solution

Answer (c) $2 \sqrt{r_2 r_2}$