Question

find diameter of a circle if:-

a radius= 9 cm​

Answer 1

Answer:

Hi! the answer is 18 cm

Step-by-step explanation:

d=2×r

Answer 2

Answer:

diameter = 18 cm

Step-by-step explanation:

We know that

diameter = 2 x radius

substituting the values

diameter = 2 x 9 cm

diameter = 18 cm