Question

a circle radius is 3 cm and then it's diameter_​

Answer 1

$\sf\orange{Answer}$

2 × radius = diameter

so,

2 × 3 = 6

Diameter = 6.

Answer 2

Answer:

the answer is 6 cm

r=radius

d=diameter

Step-by-step explanation:

formulae=

$r \times 2 \: = d \\ r = d \div 2$

here, we use first formulae r*2=d

$3 \times 2 = 6$

hence, the answer is 6

Hope It Helps You.

Mark My Answer As Brainliest Answer.