Question

c ( 0,r1) and c ( 0,r2) are two concentric circles with r1>r2.AB is a chord of c (0,r1) touching c (0,r2) at c then a) AB= r1 b) AB = r2 c ) AC=BC d) AB =r1+r2​

Answer 1

Correct option is C

AC = AB

Step-by-step explanation:

Given that AB is chord of bigger circle

Also, it is tangent to a smaller circle touching at C

Then, AB is perpendicular to OC and C is midpoint of AB

There AC = BC

Here, from the options

a) AB = r1

b) AB = r2

c) AC = BC

d) AB = r1 + r2

Correct option is C

Hence, AC = AB

Answer 2

Answer:

option is (c)

ac = ab

follow