find the radius and diameter of a circle with a circumference of 63m
To find the radius and diameter of a circle with a given circumference, you can use the formulas:
Circumference (C) = 2πr,
Diameter (D) = 2r,
where r represents the radius of the circle and π is a mathematical constant approximately equal to 3.14159.
Given that the circumference is 63 m, we can set up the equation:
63 = 2πr
To solve for r, divide both sides of the equation by 2π:
r = 63 / (2π)
Now we can calculate the approximate value of r:
r = 63 / (2 * 3.14159)
r ≈ 10.02 m
Therefore, the approximate radius of the circle is 10.02 m.
Next, we can find the diameter using the formula D = 2r:
D = 2 * 10.02
D ≈ 20.04 m
So, the approximate diameter of the circle is 20.04 m.
To find the radius and diameter of a circle, we need to use the formula for the circumference of a circle.
The formula for the circumference of a circle is C = 2πr, where C is the circumference and r is the radius.
In this case, we are given the circumference (C) as 63m. So we can rearrange the formula to solve for the radius (r):
C = 2πr
63 = 2πr
To find the radius, we need to rearrange the equation to solve for r. Divide both sides of the equation by 2π:
r = C / (2π)
r = 63 / (2π)
Now let's calculate the value of r:
r ≈ 63 / (2 * 3.14)
r ≈ 63 / 6.28
r ≈ 10.05
Therefore, the approximate radius of the circle is 10.05 meters.
To find the diameter (d), we can use the formula d = 2r:
d = 2 * 10.05
d ≈ 20.1
Therefore, the approximate diameter of the circle is 20.1 meters.
C = pi * d
63 = 3.14d
63/3.14 = d
20.06 = d
d = 2r
20.06 = 2r
? = r