Question

Tso circles have diameter in the ratio of 1:3. Find the ratio of their circumference.​

Answer 1

Answer: 1 : 3

Step-by-step explanation:

Diameter ratio = 1 : 3

Circumference = 2*pi*r   OR pi*d

Circumference 1 : Circumference 2 = pi*d1 : pi*d2

                          = d1 : d2

                           = 1 : 3

                           

ALTERNATE:

In all such questions, when diameter is given, just give the same values for  'circumference'

1 :3 ==== Circumference ratio = 1 : 3