Find the diameter of a circle with a circumference of 21.98 m.( Use 3.14 for π)
A: 6m
B: 8m
C: 7m
D: 5m
D: 5m
To find the diameter of a circle with a circumference of 21.98m, first calculate the radius by dividing the circumference by 2π (since circumference = 2πr):
21.98 = 2(3.14)r
21.98 = 6.28r
r = 21.98 / 6.28
r ≈ 3.5m
Then, to find the diameter, multiply the radius by 2:
Diameter = 2 * radius
Diameter = 2 * 3.5
Diameter = 7m
Therefore, the diameter of the circle is 7m.