Respuesta :

semsee45

Answer:

A) 25.1 cm

Step-by-step explanation:

Circumference of a circle = [tex]2\pi r[/tex],   where r = radius

⇒ circumference of circle with radius 4 cm = 2 x [tex]\pi[/tex] x 4 = 8[tex]\pi[/tex] ≈ 25.1 cm
A. 25.1
When you take the radius and double it, you get the diameter. When you multiply the diameter by 3.14, you find the circumference.
4(2)=8
8(3.14)= 25.12, A.