I need help please and thank you

Step-by-step explanation:
Diameter = r × 2
Where r = 2m
D = 2×2 = 4m
C= (3.14) × 4
= 12.56
Answer:
12.56
Step-by-step explanation:
Since the diameter is twice the radius and the formula for the circumference of a circle is [tex]\pi d[/tex], you know that the circumference of this circle is [tex]2\cdot2\cdot3.14=12.56[/tex]. Hope this helps!