Answer:
C ≈ 12.56 m, A ≈ 12.56 m²
Step-by-step explanation:
The formula of a perimeter (circumference) of a circle:
[tex]C=d\pi[/tex]
d - diameter
The formula of an area of a circle:
[tex]A=\pi r^2[/tex]
r - radius
We have d = 2r = 4m → r = 2m.
Substitute:
Use π ≈ 3.14
[tex]C=4\pi\ m\approx(4)(3.14)=12.56\ m[/tex]
[tex]A=\pi(2^2)=4\pi\ m^2\approx(4)(3.14)=12.56\ m^2[/tex]
