If a circle had a circumference of 8.4 cm, what is the diameter of the circle to the nearest 0.1 cm?
2πr = circumference
2πr = 8.4 cm
r = 8.4/(2π) = appr 1.3 cm
thank you
The formula for the circumference of a circle is given by C = πd, where C is the circumference and d is the diameter.
To find the diameter, we rearrange the formula as follows: d = C/π.
Substituting the given circumference C = 8.4 cm into the formula, we get:
d = 8.4 cm / π
Using an approximation of π as 3.14, we can calculate the diameter:
d ≈ 2.675 cm
Rounding this to the nearest 0.1 cm, the diameter of the circle is approximately 2.7 cm.
To find the diameter of a circle given its circumference, we can use the formula:
diameter = circumference / π
where π (pi) is a mathematical constant approximately equal to 3.14159.
In this case, we are given the circumference of the circle, which is 8.4 cm. We can substitute this value into the formula to find the diameter:
diameter = 8.4 cm / π
Now, let's calculate this:
diameter ≈ 8.4 cm / 3.14159
diameter ≈ 2.67 cm
Therefore, the diameter of the circle to the nearest 0.1 cm is approximately 2.7 cm.