Answer:
diameter = 12 cm
radius = 6cm
circumference = 12[tex]\pi[/tex] cm ≈ 37.68 cm
area = 36[tex]\pi[/tex] cm² ≈ 113.04 cm²
Step-by-step explanation:
r = radius
d = diameter
C = circumference
A = area
The diagram shows a circle with a diameter of 12 cm
Diameter
d = 12 cm
Radius
r = d/2
⇒ r = 12/2
⇒ r = 6 cm
Circumference
C = [tex]\pi[/tex]d
⇒ C = 12[tex]\pi[/tex] cm
Area
A = [tex]\pi[/tex]r²
⇒ A = [tex]\pi[/tex] x 6²
⇒ A = 36[tex]\pi[/tex] cm²
If you use [tex]\pi[/tex] = 3.14 then:
C = 37.68 cm
A = 113.04 cm²
