Step-by-step explanation:
r≈3.5m
C Circumference
22
m
Using the formula
C=2πr
Solving forr
r=C
2π=22
2·π≈3.50141m
Approximately
3.5
m
Step-by-step explanation:
The circumference of a circle C is equal to:
C
=
2
⋅
π
⋅
r
That's because the diameter of a circle fits
π
times in the circumference. So if you solve
r
r
=
C
2
⋅
π
=
22
2
⋅
π
≈
3.5
(using the approximation
π
≈
22
7
)