Answer:
5.73cm
Step-by-step explanation:
Given parameters:
Circumference of the circle = 36cm
Unknown
Length of the radius = ?
Lets represent the radius by r
Solution
The circumference of a circle is the defined as the perimeter of a circle. The formula is given as:
Circumference of a circle = 2πr
Since the unknown is r, we make it the subject of the formula:
r = [tex]\frac{circumference of the circle}{2π}[/tex]
r = [tex]\frac{36}{2 x 3.142}[/tex] = [tex]\frac{36}{6.284}[/tex] = 5.73cm
Answer:
The radius = 18 cm.
Step-by-step explanation:
I am assuming that is 36π.
If so, then circumference = 2 π r and:
2 π r = 36 π
r = 36π / 2π
r = 18.
