Answer:
72/ π
Step-by-step explanation:
Circumference of the cirlce = 2 π r
72 = 2 π r
72/2π = r
36/π = r
Since diameter = 2r then diameter = 36/π x 2 = 72/ π
Answer:
The diameter is [tex]\frac{72}{\pi}[/tex] inches
Step-by-step explanation:
A bike tyre has the structure of a circle.
The circunference of a circle is given by the following formula:
[tex]C = 2\pi r[/tex]
In which r is the radius of the circle. The diameter is twice the radius.
So the first step to solve this problem is finding the radius.
[tex]72 = 2\pi r[/tex]
[tex]r = \frac{6}{\pi}[/tex]
The diameter is twice the radius. So:
[tex]d = 2r = \frac{72}{\pi}[/tex]
The diameter is [tex]\frac{72}{\pi}[/tex] inches
