Question

if radii of two concentric circle are 4 cm and 5 cm then find then code of Greater circle which touches inner circle also meeting at The origin at the right when join from end point of code then find the length of code

Answer 1

let OD be the radius of smaller circle and OA be radius of larger circle and AB be the chord of larger circle which is the tangent of smaller circle.
i hope you are satisfied with my soln.

Answer 2

Answer:

So, we need to find the length of each chord of one circle which is tangent to the other circle.

Since it forms a right angle triangle.

Hence, the length of the chord is 6 cm.