find the diameter of a circle if the circumference is 8cm round to the nearest tenth
C = pi * d
d = C/pi
d = 8 / 3.14
d = ?
I don’t get it.
To find the diameter of a circle when only the circumference is given, you can use the formula:
Circumference = π × Diameter
Given that the circumference is 8 cm, we can plug in the value and solve for the diameter:
8 = 3.14159 × Diameter
Dividing both sides of the equation by π:
8 / 3.14159 = Diameter
Approximately:
Diameter ≈ 2.5465 cm
Rounding to the nearest tenth:
Diameter ≈ 2.5 cm
To find the diameter of a circle when given the circumference, you can use the formula:
d = C / π
where d is the diameter and C is the circumference.
Given that the circumference is 8 cm, we can substitute this value into the formula:
d = 8 / π
To round the answer to the nearest tenth, we need to approximate the value of π. The commonly used approximation for π is 3.14.
Substituting the value of π and calculating the diameter:
d = 8 / 3.14 ≈ 2.55 cm
Therefore, the diameter of the circle is approximately 2.55 cm when rounded to the nearest tenth.