Answer:
50.29 cm
Step-by-step explanation:
Given:
Diameter of each doughnut = 8 cm
To find: circumference of each doughnut
Solution:
Circumference refers to the boundary of a geometric figure.
A doughnut has the shape of a circle.
Let r represents the radius of the circle.
Diameter of each doughnut = 8 cm
Radius of each doughnut (r) = Diameter/2
[tex]=\frac{8}{2}\\ =4 \,\,cm[/tex]
Circumference of each doughnut [tex]=\pi r^2\\[/tex]
Put [tex]r=4\,\,,\pi=\frac{22}{7}[/tex]
So, circumference = [tex]=\frac{22}{7} (4)^2[/tex]
[tex]=\frac{352}{7} \,\,cm\\=50.29\,\,cm[/tex]
