Question

A circle has a circumference of 28.26 units. What is the diameter of the circle?

Answer 1

Given,
2πr = 28.26
r=28.26/2π
d = 2r
therefore d = 28.26/2π×2
=28.26/π = 9 units
Taking π= 3.14

Answer 2

Answer:

Diameter of circle is 9 units.

Step-by-step explanation:

Given, the circumference of circle which is 28.26 units.

we have to find the diameter of circle.

$2\pi r=28.26$

$r=\frac{28.26}{2\pi }=\frac{28.26}{2\times 22}\times 7$

$=14.13\times\frac{7}{22}=4.95\sim 4.5units$

$Diameter=2\times radius=2r$

$=2\times 4.5=9 units$

Diameter is 9 units.