![The centers of three circles of 1unit radius each lies on a straight line, AB, A is a point on the circumference of first circle](https://www.gkseries.com/blog/wp-content/uploads/2024/03/The-centers-of-three-circles-of-1unit-radius-each-lies-on-a-straight-line-AB-A-is-a-point-on-the-circumference-of-first-circle.jpg)
The centers of three circles of 1unit radius each lies on a straight line, AB, A is a point on the circumference of first circle. Second circle touches the first and third circle, From point A, a tangent AE is drawn to third circle, touching third circle at E this tangent cuts second circle at C and D. find length of chord CD?
a) 7/4
b) 10/7
c) 4/3
d) 8/5
Sol:![](https://www.gkseries.com/blog/wp-content/uploads/2024/03/image-92-1024x320.png)
![](https://www.gkseries.com/blog/wp-content/uploads/2024/03/image-93-581x1024.png)