Question

If a line intersects two concentric circles with centre O at A,B,C and D. Prove that AB = CD.​

Answer 1

Answer:

here my friend : )

Step-by-step explanation:

2 concentric circles have same point O,

therefore distance between both the circles from any point will be same

AB+BC+CD= AD

AB+CD=AD-BC

AB+CD=AD

Hence Proved