calculate a radius of a circle circumference is 9.6 cm using π=3.14 .
The formula relating the circumference (C) and radius (r) of a circle is:
C = 2πr
We are given that the circumference is 9.6 cm and π=3.14, so we can substitute these values into the formula:
9.6 = 2(3.14)r
Simplifying this equation, we can divide both sides by 2(3.14):
r = 9.6 / (2(3.14))
r = 1.53 cm (rounded to two decimal places)
Therefore, the radius of the circle is approximately 1.53 cm.
To calculate the radius of a circle when given the circumference, we can use the formula:
C = 2 * π * r
where C is the circumference, π is pi (approximately 3.14), and r is the radius.
We are given the circumference (C) as 9.6 cm and we know that π=3.14, so we can rearrange the formula to find the radius (r) as follows:
r = C / (2 * π)
Now we can plug in the given values:
r = 9.6 / (2 * 3.14)
r = 9.6 / 6.28
r ≈ 1.53 cm
So the radius of the circle is approximately 1.53 centimeters.
calculate the perimeter of a diameter of a circle whose is 8m using the formlar π=3.14 .
The diameter of a circle is twice the length of its radius, so if the diameter of the circle is 8 meters, then its radius is 4 meters.
The perimeter of a circle is the distance around its edge or circumference, and it is calculated using the formula:
perimeter = 2 * π * radius
Substituting the given values, we get:
perimeter = 2 * 3.14 * 4
perimeter = 25.12 meters
Therefore, the perimeter of the diameter of the circle is 25.12 meters.